Home / 80,617.20-111,301.52-51,946.98

Finding the Fourth Proportional to 80,617.20, 111,301.52 and 51,946.98

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Solution

The fourth proportional to 80,617.20, 111,301.52 and 51,946.98 is: 71,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.20 : 111,301.52 = 51,946.98 : x
  2. Step 2: Convert to fraction form
    80,617.20/111,301.52 = 51,946.98/x
  3. Step 3: Cross multiply
    80,617.20x = 111,301.52 × 51,946.98
  4. Step 4: Simplify right side
    80,617.20x = 5,781,777,833.41
  5. Step 5: Solve for x
    x = 5,781,777,833.41/80,617.20
  6. Step 6: Final answer
    x = 71,718.91

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1.5x scale

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.