Home / 83,887.40-115,781.19-48,101.60

Finding the Fourth Proportional to 83,887.40, 115,781.19 and 48,101.60

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Solution

The fourth proportional to 83,887.40, 115,781.19 and 48,101.60 is: 66,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,887.40 : 115,781.19 = 48,101.60 : x
  2. Step 2: Convert to fraction form
    83,887.40/115,781.19 = 48,101.60/x
  3. Step 3: Cross multiply
    83,887.40x = 115,781.19 × 48,101.60
  4. Step 4: Simplify right side
    83,887.40x = 5,569,260,488.90
  5. Step 5: Solve for x
    x = 5,569,260,488.90/83,887.40
  6. Step 6: Final answer
    x = 66,389.71

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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.