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Finding the Fourth Proportional to 65,180.88, 97,581.15 and 40,145.79

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Solution

The fourth proportional to 65,180.88, 97,581.15 and 40,145.79 is: 60,101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,180.88 : 97,581.15 = 40,145.79 : x
  2. Step 2: Convert to fraction form
    65,180.88/97,581.15 = 40,145.79/x
  3. Step 3: Cross multiply
    65,180.88x = 97,581.15 × 40,145.79
  4. Step 4: Simplify right side
    65,180.88x = 3,917,472,355.86
  5. Step 5: Solve for x
    x = 3,917,472,355.86/65,180.88
  6. Step 6: Final answer
    x = 60,101.56

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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.