Home / 87,424.46-131,136.67-28,260.13

Finding the Fourth Proportional to 87,424.46, 131,136.67 and 28,260.13

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Solution

The fourth proportional to 87,424.46, 131,136.67 and 28,260.13 is: 42,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,424.46 : 131,136.67 = 28,260.13 : x
  2. Step 2: Convert to fraction form
    87,424.46/131,136.67 = 28,260.13/x
  3. Step 3: Cross multiply
    87,424.46x = 131,136.67 × 28,260.13
  4. Step 4: Simplify right side
    87,424.46x = 3,705,939,341.97
  5. Step 5: Solve for x
    x = 3,705,939,341.97/87,424.46
  6. Step 6: Final answer
    x = 42,390.19

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1.5x scale

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.