Home / 83,948.95-115,857.72-62,691.31

Finding the Fourth Proportional to 83,948.95, 115,857.72 and 62,691.31

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Solution

The fourth proportional to 83,948.95, 115,857.72 and 62,691.31 is: 86,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,948.95 : 115,857.72 = 62,691.31 : x
  2. Step 2: Convert to fraction form
    83,948.95/115,857.72 = 62,691.31/x
  3. Step 3: Cross multiply
    83,948.95x = 115,857.72 × 62,691.31
  4. Step 4: Simplify right side
    83,948.95x = 7,263,272,240.41
  5. Step 5: Solve for x
    x = 7,263,272,240.41/83,948.95
  6. Step 6: Final answer
    x = 86,520.11

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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.