Home / 80,565.44-120,845.76-47,259.92

Finding the Fourth Proportional to 80,565.44, 120,845.76 and 47,259.92

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Solution

The fourth proportional to 80,565.44, 120,845.76 and 47,259.92 is: 70,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,565.44 : 120,845.76 = 47,259.92 : x
  2. Step 2: Convert to fraction form
    80,565.44/120,845.76 = 47,259.92/x
  3. Step 3: Cross multiply
    80,565.44x = 120,845.76 × 47,259.92
  4. Step 4: Simplify right side
    80,565.44x = 5,711,160,949.94
  5. Step 5: Solve for x
    x = 5,711,160,949.94/80,565.44
  6. Step 6: Final answer
    x = 70,888.47

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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.