Home / 69,465.28-95,856.42-40,781.92

Finding the Fourth Proportional to 69,465.28, 95,856.42 and 40,781.92

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Solution

The fourth proportional to 69,465.28, 95,856.42 and 40,781.92 is: 56,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,465.28 : 95,856.42 = 40,781.92 : x
  2. Step 2: Convert to fraction form
    69,465.28/95,856.42 = 40,781.92/x
  3. Step 3: Cross multiply
    69,465.28x = 95,856.42 × 40,781.92
  4. Step 4: Simplify right side
    69,465.28x = 3,909,208,851.93
  5. Step 5: Solve for x
    x = 3,909,208,851.93/69,465.28
  6. Step 6: Final answer
    x = 56,275.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.