Home / 87,331.04-130,996.54-28,166.70

Finding the Fourth Proportional to 87,331.04, 130,996.54 and 28,166.70

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Solution

The fourth proportional to 87,331.04, 130,996.54 and 28,166.70 is: 42,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.04 : 130,996.54 = 28,166.70 : x
  2. Step 2: Convert to fraction form
    87,331.04/130,996.54 = 28,166.70/x
  3. Step 3: Cross multiply
    87,331.04x = 130,996.54 × 28,166.70
  4. Step 4: Simplify right side
    87,331.04x = 3,689,740,243.22
  5. Step 5: Solve for x
    x = 3,689,740,243.22/87,331.04
  6. Step 6: Final answer
    x = 42,250.04

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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.