Home / 91,568.96-126,331.68-74,872.64

Finding the Fourth Proportional to 91,568.96, 126,331.68 and 74,872.64

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Solution

The fourth proportional to 91,568.96, 126,331.68 and 74,872.64 is: 103,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,568.96 : 126,331.68 = 74,872.64 : x
  2. Step 2: Convert to fraction form
    91,568.96/126,331.68 = 74,872.64/x
  3. Step 3: Cross multiply
    91,568.96x = 126,331.68 × 74,872.64
  4. Step 4: Simplify right side
    91,568.96x = 9,458,786,397.24
  5. Step 5: Solve for x
    x = 9,458,786,397.24/91,568.96
  6. Step 6: Final answer
    x = 103,296.86

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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.