Home / 87,765.72-131,657.85-28,606.02

Finding the Fourth Proportional to 87,765.72, 131,657.85 and 28,606.02

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Solution

The fourth proportional to 87,765.72, 131,657.85 and 28,606.02 is: 42,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,765.72 : 131,657.85 = 28,606.02 : x
  2. Step 2: Convert to fraction form
    87,765.72/131,657.85 = 28,606.02/x
  3. Step 3: Cross multiply
    87,765.72x = 131,657.85 × 28,606.02
  4. Step 4: Simplify right side
    87,765.72x = 3,766,207,090.26
  5. Step 5: Solve for x
    x = 3,766,207,090.26/87,765.72
  6. Step 6: Final answer
    x = 42,912.05

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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.