Home / 87,186.52-130,689.06-40,400.92

Finding the Fourth Proportional to 87,186.52, 130,689.06 and 40,400.92

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Solution

The fourth proportional to 87,186.52, 130,689.06 and 40,400.92 is: 60,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,186.52 : 130,689.06 = 40,400.92 : x
  2. Step 2: Convert to fraction form
    87,186.52/130,689.06 = 40,400.92/x
  3. Step 3: Cross multiply
    87,186.52x = 130,689.06 × 40,400.92
  4. Step 4: Simplify right side
    87,186.52x = 5,279,958,257.94
  5. Step 5: Solve for x
    x = 5,279,958,257.94/87,186.52
  6. Step 6: Final answer
    x = 60,559.34

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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.