Home / 87,260.68-130,891.02-28,100.98

Finding the Fourth Proportional to 87,260.68, 130,891.02 and 28,100.98

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Solution

The fourth proportional to 87,260.68, 130,891.02 and 28,100.98 is: 42,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,260.68 : 130,891.02 = 28,100.98 : x
  2. Step 2: Convert to fraction form
    87,260.68/130,891.02 = 28,100.98/x
  3. Step 3: Cross multiply
    87,260.68x = 130,891.02 × 28,100.98
  4. Step 4: Simplify right side
    87,260.68x = 3,678,165,935.20
  5. Step 5: Solve for x
    x = 3,678,165,935.20/87,260.68
  6. Step 6: Final answer
    x = 42,151.47

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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.