Home / 80,861.47-121,158.13-49,175.70

Finding the Fourth Proportional to 80,861.47, 121,158.13 and 49,175.70

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Solution

The fourth proportional to 80,861.47, 121,158.13 and 49,175.70 is: 73,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,861.47 : 121,158.13 = 49,175.70 : x
  2. Step 2: Convert to fraction form
    80,861.47/121,158.13 = 49,175.70/x
  3. Step 3: Cross multiply
    80,861.47x = 121,158.13 × 49,175.70
  4. Step 4: Simplify right side
    80,861.47x = 5,958,035,853.44
  5. Step 5: Solve for x
    x = 5,958,035,853.44/80,861.47
  6. Step 6: Final answer
    x = 73,682.01

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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.