Home / 87,488.68-131,253.80-28,324.32

Finding the Fourth Proportional to 87,488.68, 131,253.80 and 28,324.32

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Solution

The fourth proportional to 87,488.68, 131,253.80 and 28,324.32 is: 42,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,488.68 : 131,253.80 = 28,324.32 : x
  2. Step 2: Convert to fraction form
    87,488.68/131,253.80 = 28,324.32/x
  3. Step 3: Cross multiply
    87,488.68x = 131,253.80 × 28,324.32
  4. Step 4: Simplify right side
    87,488.68x = 3,717,674,632.42
  5. Step 5: Solve for x
    x = 3,717,674,632.42/87,488.68
  6. Step 6: Final answer
    x = 42,493.21

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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.