Home / 84,186.10-126,274.19-31,591.14

Finding the Fourth Proportional to 84,186.10, 126,274.19 and 31,591.14

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Solution

The fourth proportional to 84,186.10, 126,274.19 and 31,591.14 is: 47,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,186.10 : 126,274.19 = 31,591.14 : x
  2. Step 2: Convert to fraction form
    84,186.10/126,274.19 = 31,591.14/x
  3. Step 3: Cross multiply
    84,186.10x = 126,274.19 × 31,591.14
  4. Step 4: Simplify right side
    84,186.10x = 3,989,145,614.68
  5. Step 5: Solve for x
    x = 3,989,145,614.68/84,186.10
  6. Step 6: Final answer
    x = 47,384.85

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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.