Home / 67,854.76-93,627.42-40,979.20

Finding the Fourth Proportional to 67,854.76, 93,627.42 and 40,979.20

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Solution

The fourth proportional to 67,854.76, 93,627.42 and 40,979.20 is: 56,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,854.76 : 93,627.42 = 40,979.20 : x
  2. Step 2: Convert to fraction form
    67,854.76/93,627.42 = 40,979.20/x
  3. Step 3: Cross multiply
    67,854.76x = 93,627.42 × 40,979.20
  4. Step 4: Simplify right side
    67,854.76x = 3,836,776,769.66
  5. Step 5: Solve for x
    x = 3,836,776,769.66/67,854.76
  6. Step 6: Final answer
    x = 56,543.96

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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.