Home / 83,701.38-115,508.72-45,975.63

Finding the Fourth Proportional to 83,701.38, 115,508.72 and 45,975.63

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Solution

The fourth proportional to 83,701.38, 115,508.72 and 45,975.63 is: 63,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,701.38 : 115,508.72 = 45,975.63 : x
  2. Step 2: Convert to fraction form
    83,701.38/115,508.72 = 45,975.63/x
  3. Step 3: Cross multiply
    83,701.38x = 115,508.72 × 45,975.63
  4. Step 4: Simplify right side
    83,701.38x = 5,310,586,287.43
  5. Step 5: Solve for x
    x = 5,310,586,287.43/83,701.38
  6. Step 6: Final answer
    x = 63,446.82

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Half scale
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Double scale
Find fourth proportional to 83,702.38, 115,510.10 and 45,976.63
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.