Home / 78,474.92-108,340.02-51,695.24

Finding the Fourth Proportional to 78,474.92, 108,340.02 and 51,695.24

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Solution

The fourth proportional to 78,474.92, 108,340.02 and 51,695.24 is: 71,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,474.92 : 108,340.02 = 51,695.24 : x
  2. Step 2: Convert to fraction form
    78,474.92/108,340.02 = 51,695.24/x
  3. Step 3: Cross multiply
    78,474.92x = 108,340.02 × 51,695.24
  4. Step 4: Simplify right side
    78,474.92x = 5,600,663,335.50
  5. Step 5: Solve for x
    x = 5,600,663,335.50/78,474.92
  6. Step 6: Final answer
    x = 71,368.83

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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.