Home / 78,325.29-117,339.98-60,708.87

Finding the Fourth Proportional to 78,325.29, 117,339.98 and 60,708.87

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Solution

The fourth proportional to 78,325.29, 117,339.98 and 60,708.87 is: 90,948.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,325.29 : 117,339.98 = 60,708.87 : x
  2. Step 2: Convert to fraction form
    78,325.29/117,339.98 = 60,708.87/x
  3. Step 3: Cross multiply
    78,325.29x = 117,339.98 × 60,708.87
  4. Step 4: Simplify right side
    78,325.29x = 7,123,577,288.08
  5. Step 5: Solve for x
    x = 7,123,577,288.08/78,325.29
  6. Step 6: Final answer
    x = 90,948.62

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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.