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Finding the Fourth Proportional to 87,522.72, 131,284.08 and 69,910.08

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Solution

The fourth proportional to 87,522.72, 131,284.08 and 69,910.08 is: 104,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,522.72 : 131,284.08 = 69,910.08 : x
  2. Step 2: Convert to fraction form
    87,522.72/131,284.08 = 69,910.08/x
  3. Step 3: Cross multiply
    87,522.72x = 131,284.08 × 69,910.08
  4. Step 4: Simplify right side
    87,522.72x = 9,178,080,535.53
  5. Step 5: Solve for x
    x = 9,178,080,535.53/87,522.72
  6. Step 6: Final answer
    x = 104,865.12

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Similar ratio
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1.5x scale

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.