Home / 87,730.55-131,595.82-28,572.20

Finding the Fourth Proportional to 87,730.55, 131,595.82 and 28,572.20

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Solution

The fourth proportional to 87,730.55, 131,595.82 and 28,572.20 is: 42,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.55 : 131,595.82 = 28,572.20 : x
  2. Step 2: Convert to fraction form
    87,730.55/131,595.82 = 28,572.20/x
  3. Step 3: Cross multiply
    87,730.55x = 131,595.82 × 28,572.20
  4. Step 4: Simplify right side
    87,730.55x = 3,759,982,088.20
  5. Step 5: Solve for x
    x = 3,759,982,088.20/87,730.55
  6. Step 6: Final answer
    x = 42,858.30

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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.