Home / 57,728.20-86,549.10-31,462.60

Finding the Fourth Proportional to 57,728.20, 86,549.10 and 31,462.60

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Solution

The fourth proportional to 57,728.20, 86,549.10 and 31,462.60 is: 47,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.20 : 86,549.10 = 31,462.60 : x
  2. Step 2: Convert to fraction form
    57,728.20/86,549.10 = 31,462.60/x
  3. Step 3: Cross multiply
    57,728.20x = 86,549.10 × 31,462.60
  4. Step 4: Simplify right side
    57,728.20x = 2,723,059,713.66
  5. Step 5: Solve for x
    x = 2,723,059,713.66/57,728.20
  6. Step 6: Final answer
    x = 47,170.36

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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.