Home / 80,687.64-111,347.27-44,387.56

Finding the Fourth Proportional to 80,687.64, 111,347.27 and 44,387.56

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Solution

The fourth proportional to 80,687.64, 111,347.27 and 44,387.56 is: 61,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687.64 : 111,347.27 = 44,387.56 : x
  2. Step 2: Convert to fraction form
    80,687.64/111,347.27 = 44,387.56/x
  3. Step 3: Cross multiply
    80,687.64x = 111,347.27 × 44,387.56
  4. Step 4: Simplify right side
    80,687.64x = 4,942,433,406.02
  5. Step 5: Solve for x
    x = 4,942,433,406.02/80,687.64
  6. Step 6: Final answer
    x = 61,253.91

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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.