Home / 90,711.90-136,068.12-27,532.53

Finding the Fourth Proportional to 90,711.90, 136,068.12 and 27,532.53

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Solution

The fourth proportional to 90,711.90, 136,068.12 and 27,532.53 is: 41,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.90 : 136,068.12 = 27,532.53 : x
  2. Step 2: Convert to fraction form
    90,711.90/136,068.12 = 27,532.53/x
  3. Step 3: Cross multiply
    90,711.90x = 136,068.12 × 27,532.53
  4. Step 4: Simplify right side
    90,711.90x = 3,746,299,595.94
  5. Step 5: Solve for x
    x = 3,746,299,595.94/90,711.90
  6. Step 6: Final answer
    x = 41,298.88

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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.