Home / 90,951.62-136,445.92-38,361.28

Finding the Fourth Proportional to 90,951.62, 136,445.92 and 38,361.28

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Solution

The fourth proportional to 90,951.62, 136,445.92 and 38,361.28 is: 57,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.62 : 136,445.92 = 38,361.28 : x
  2. Step 2: Convert to fraction form
    90,951.62/136,445.92 = 38,361.28/x
  3. Step 3: Cross multiply
    90,951.62x = 136,445.92 × 38,361.28
  4. Step 4: Simplify right side
    90,951.62x = 5,234,240,141.98
  5. Step 5: Solve for x
    x = 5,234,240,141.98/90,951.62
  6. Step 6: Final answer
    x = 57,549.72

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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.