Home / 80,691.53-111,351.27-44,880.78

Finding the Fourth Proportional to 80,691.53, 111,351.27 and 44,880.78

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Solution

The fourth proportional to 80,691.53, 111,351.27 and 44,880.78 is: 61,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,691.53 : 111,351.27 = 44,880.78 : x
  2. Step 2: Convert to fraction form
    80,691.53/111,351.27 = 44,880.78/x
  3. Step 3: Cross multiply
    80,691.53x = 111,351.27 × 44,880.78
  4. Step 4: Simplify right side
    80,691.53x = 4,997,532,437.46
  5. Step 5: Solve for x
    x = 4,997,532,437.46/80,691.53
  6. Step 6: Final answer
    x = 61,933.80

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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.