Home / 87,529.84-131,209.74-69,717.04

Finding the Fourth Proportional to 87,529.84, 131,209.74 and 69,717.04

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Solution

The fourth proportional to 87,529.84, 131,209.74 and 69,717.04 is: 104,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,529.84 : 131,209.74 = 69,717.04 : x
  2. Step 2: Convert to fraction form
    87,529.84/131,209.74 = 69,717.04/x
  3. Step 3: Cross multiply
    87,529.84x = 131,209.74 × 69,717.04
  4. Step 4: Simplify right side
    87,529.84x = 9,147,554,691.97
  5. Step 5: Solve for x
    x = 9,147,554,691.97/87,529.84
  6. Step 6: Final answer
    x = 104,507.84

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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.