Home / 80,872.98-111,614.58-49,041.78

Finding the Fourth Proportional to 80,872.98, 111,614.58 and 49,041.78

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Solution

The fourth proportional to 80,872.98, 111,614.58 and 49,041.78 is: 67,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.98 : 111,614.58 = 49,041.78 : x
  2. Step 2: Convert to fraction form
    80,872.98/111,614.58 = 49,041.78/x
  3. Step 3: Cross multiply
    80,872.98x = 111,614.58 × 49,041.78
  4. Step 4: Simplify right side
    80,872.98x = 5,473,777,677.15
  5. Step 5: Solve for x
    x = 5,473,777,677.15/80,872.98
  6. Step 6: Final answer
    x = 67,683.64

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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.