Home / 78,713.73-117,972.18-62,007.78

Finding the Fourth Proportional to 78,713.73, 117,972.18 and 62,007.78

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Solution

The fourth proportional to 78,713.73, 117,972.18 and 62,007.78 is: 92,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,713.73 : 117,972.18 = 62,007.78 : x
  2. Step 2: Convert to fraction form
    78,713.73/117,972.18 = 62,007.78/x
  3. Step 3: Cross multiply
    78,713.73x = 117,972.18 × 62,007.78
  4. Step 4: Simplify right side
    78,713.73x = 7,315,192,983.56
  5. Step 5: Solve for x
    x = 7,315,192,983.56/78,713.73
  6. Step 6: Final answer
    x = 92,934.14

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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.