Home / 84,099.08-126,148.61-57,723.86

Finding the Fourth Proportional to 84,099.08, 126,148.61 and 57,723.86

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Solution

The fourth proportional to 84,099.08, 126,148.61 and 57,723.86 is: 86,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,099.08 : 126,148.61 = 57,723.86 : x
  2. Step 2: Convert to fraction form
    84,099.08/126,148.61 = 57,723.86/x
  3. Step 3: Cross multiply
    84,099.08x = 126,148.61 × 57,723.86
  4. Step 4: Simplify right side
    84,099.08x = 7,281,784,702.83
  5. Step 5: Solve for x
    x = 7,281,784,702.83/84,099.08
  6. Step 6: Final answer
    x = 86,585.78

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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.