Home / 87,421.70-131,132.55-34,868.09

Finding the Fourth Proportional to 87,421.70, 131,132.55 and 34,868.09

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Solution

The fourth proportional to 87,421.70, 131,132.55 and 34,868.09 is: 52,302.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421.70 : 131,132.55 = 34,868.09 : x
  2. Step 2: Convert to fraction form
    87,421.70/131,132.55 = 34,868.09/x
  3. Step 3: Cross multiply
    87,421.70x = 131,132.55 × 34,868.09
  4. Step 4: Simplify right side
    87,421.70x = 4,572,341,883.16
  5. Step 5: Solve for x
    x = 4,572,341,883.16/87,421.70
  6. Step 6: Final answer
    x = 52,302.14

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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.