Home / 87,435.68-131,153.52-40,633.88

Finding the Fourth Proportional to 87,435.68, 131,153.52 and 40,633.88

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Solution

The fourth proportional to 87,435.68, 131,153.52 and 40,633.88 is: 60,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.68 : 131,153.52 = 40,633.88 : x
  2. Step 2: Convert to fraction form
    87,435.68/131,153.52 = 40,633.88/x
  3. Step 3: Cross multiply
    87,435.68x = 131,153.52 × 40,633.88
  4. Step 4: Simplify right side
    87,435.68x = 5,329,276,393.26
  5. Step 5: Solve for x
    x = 5,329,276,393.26/87,435.68
  6. Step 6: Final answer
    x = 60,950.82

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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.