Home / 86,651.28-129,863.67-62,716.17

Finding the Fourth Proportional to 86,651.28, 129,863.67 and 62,716.17

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Solution

The fourth proportional to 86,651.28, 129,863.67 and 62,716.17 is: 93,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,651.28 : 129,863.67 = 62,716.17 : x
  2. Step 2: Convert to fraction form
    86,651.28/129,863.67 = 62,716.17/x
  3. Step 3: Cross multiply
    86,651.28x = 129,863.67 × 62,716.17
  4. Step 4: Simplify right side
    86,651.28x = 8,144,552,004.54
  5. Step 5: Solve for x
    x = 8,144,552,004.54/86,651.28
  6. Step 6: Final answer
    x = 93,992.29

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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.