Home / 87,253.10-130,900.15-28,086.55

Finding the Fourth Proportional to 87,253.10, 130,900.15 and 28,086.55

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Solution

The fourth proportional to 87,253.10, 130,900.15 and 28,086.55 is: 42,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,253.10 : 130,900.15 = 28,086.55 : x
  2. Step 2: Convert to fraction form
    87,253.10/130,900.15 = 28,086.55/x
  3. Step 3: Cross multiply
    87,253.10x = 130,900.15 × 28,086.55
  4. Step 4: Simplify right side
    87,253.10x = 3,676,533,315.84
  5. Step 5: Solve for x
    x = 3,676,533,315.84/87,253.10
  6. Step 6: Final answer
    x = 42,136.42

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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.