Home / 57,151.34-85,695.74-45,380.72

Finding the Fourth Proportional to 57,151.34, 85,695.74 and 45,380.72

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Solution

The fourth proportional to 57,151.34, 85,695.74 and 45,380.72 is: 68,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.34 : 85,695.74 = 45,380.72 : x
  2. Step 2: Convert to fraction form
    57,151.34/85,695.74 = 45,380.72/x
  3. Step 3: Cross multiply
    57,151.34x = 85,695.74 × 45,380.72
  4. Step 4: Simplify right side
    57,151.34x = 3,888,933,726.75
  5. Step 5: Solve for x
    x = 3,888,933,726.75/57,151.34
  6. Step 6: Final answer
    x = 68,046.24

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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.