Home / 80,278.48-120,378.03-47,006.92

Finding the Fourth Proportional to 80,278.48, 120,378.03 and 47,006.92

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Solution

The fourth proportional to 80,278.48, 120,378.03 and 47,006.92 is: 70,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,278.48 : 120,378.03 = 47,006.92 : x
  2. Step 2: Convert to fraction form
    80,278.48/120,378.03 = 47,006.92/x
  3. Step 3: Cross multiply
    80,278.48x = 120,378.03 × 47,006.92
  4. Step 4: Simplify right side
    80,278.48x = 5,658,600,425.97
  5. Step 5: Solve for x
    x = 5,658,600,425.97/80,278.48
  6. Step 6: Final answer
    x = 70,487.14

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1.5x scale

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.