Home / 89,772.30-134,690.60-38,459.43

Finding the Fourth Proportional to 89,772.30, 134,690.60 and 38,459.43

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Solution

The fourth proportional to 89,772.30, 134,690.60 and 38,459.43 is: 57,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772.30 : 134,690.60 = 38,459.43 : x
  2. Step 2: Convert to fraction form
    89,772.30/134,690.60 = 38,459.43/x
  3. Step 3: Cross multiply
    89,772.30x = 134,690.60 × 38,459.43
  4. Step 4: Simplify right side
    89,772.30x = 5,180,123,960.99
  5. Step 5: Solve for x
    x = 5,180,123,960.99/89,772.30
  6. Step 6: Final answer
    x = 57,702.92

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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.