Home / 87,254.10-130,901.65-28,087.55

Finding the Fourth Proportional to 87,254.10, 130,901.65 and 28,087.55

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Solution

The fourth proportional to 87,254.10, 130,901.65 and 28,087.55 is: 42,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,254.10 : 130,901.65 = 28,087.55 : x
  2. Step 2: Convert to fraction form
    87,254.10/130,901.65 = 28,087.55/x
  3. Step 3: Cross multiply
    87,254.10x = 130,901.65 × 28,087.55
  4. Step 4: Simplify right side
    87,254.10x = 3,676,706,639.46
  5. Step 5: Solve for x
    x = 3,676,706,639.46/87,254.10
  6. Step 6: Final answer
    x = 42,137.92

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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.