Home / 67,879.46-101,778.27-30,432.76

Finding the Fourth Proportional to 67,879.46, 101,778.27 and 30,432.76

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Solution

The fourth proportional to 67,879.46, 101,778.27 and 30,432.76 is: 45,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.46 : 101,778.27 = 30,432.76 : x
  2. Step 2: Convert to fraction form
    67,879.46/101,778.27 = 30,432.76/x
  3. Step 3: Cross multiply
    67,879.46x = 101,778.27 × 30,432.76
  4. Step 4: Simplify right side
    67,879.46x = 3,097,393,664.13
  5. Step 5: Solve for x
    x = 3,097,393,664.13/67,879.46
  6. Step 6: Final answer
    x = 45,630.79

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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.