Home / 87,462.10-131,160.21-28,281.88

Finding the Fourth Proportional to 87,462.10, 131,160.21 and 28,281.88

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Solution

The fourth proportional to 87,462.10, 131,160.21 and 28,281.88 is: 42,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,462.10 : 131,160.21 = 28,281.88 : x
  2. Step 2: Convert to fraction form
    87,462.10/131,160.21 = 28,281.88/x
  3. Step 3: Cross multiply
    87,462.10x = 131,160.21 × 28,281.88
  4. Step 4: Simplify right side
    87,462.10x = 3,709,457,319.99
  5. Step 5: Solve for x
    x = 3,709,457,319.99/87,462.10
  6. Step 6: Final answer
    x = 42,412.17

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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.