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Finding the Fourth Proportional to 83,162.38, 114,763.89 and 45,436.90

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Solution

The fourth proportional to 83,162.38, 114,763.89 and 45,436.90 is: 62,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,162.38 : 114,763.89 = 45,436.90 : x
  2. Step 2: Convert to fraction form
    83,162.38/114,763.89 = 45,436.90/x
  3. Step 3: Cross multiply
    83,162.38x = 114,763.89 × 45,436.90
  4. Step 4: Simplify right side
    83,162.38x = 5,214,515,393.54
  5. Step 5: Solve for x
    x = 5,214,515,393.54/83,162.38
  6. Step 6: Final answer
    x = 62,702.82

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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.