Home / 87,217.68-130,814.16-28,045.80

Finding the Fourth Proportional to 87,217.68, 130,814.16 and 28,045.80

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Solution

The fourth proportional to 87,217.68, 130,814.16 and 28,045.80 is: 42,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,217.68 : 130,814.16 = 28,045.80 : x
  2. Step 2: Convert to fraction form
    87,217.68/130,814.16 = 28,045.80/x
  3. Step 3: Cross multiply
    87,217.68x = 130,814.16 × 28,045.80
  4. Step 4: Simplify right side
    87,217.68x = 3,668,787,768.53
  5. Step 5: Solve for x
    x = 3,668,787,768.53/87,217.68
  6. Step 6: Final answer
    x = 42,064.73

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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.