Home / 78,691.17-118,036.59-24,660

Finding the Fourth Proportional to 78,691.17, 118,036.59 and 24,660

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Solution

The fourth proportional to 78,691.17, 118,036.59 and 24,660 is: 36,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,691.17 : 118,036.59 = 24,660 : x
  2. Step 2: Convert to fraction form
    78,691.17/118,036.59 = 24,660/x
  3. Step 3: Cross multiply
    78,691.17x = 118,036.59 × 24,660
  4. Step 4: Simplify right side
    78,691.17x = 2,910,782,309.40
  5. Step 5: Solve for x
    x = 2,910,782,309.40/78,691.17
  6. Step 6: Final answer
    x = 36,989.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.