Home / 83,702.10-115,503.80-45,976.35

Finding the Fourth Proportional to 83,702.10, 115,503.80 and 45,976.35

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Solution

The fourth proportional to 83,702.10, 115,503.80 and 45,976.35 is: 63,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,702.10 : 115,503.80 = 45,976.35 : x
  2. Step 2: Convert to fraction form
    83,702.10/115,503.80 = 45,976.35/x
  3. Step 3: Cross multiply
    83,702.10x = 115,503.80 × 45,976.35
  4. Step 4: Simplify right side
    83,702.10x = 5,310,442,905.25
  5. Step 5: Solve for x
    x = 5,310,442,905.25/83,702.10
  6. Step 6: Final answer
    x = 63,444.56

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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.