Home / 84,167.64-126,218.66-31,548.42

Finding the Fourth Proportional to 84,167.64, 126,218.66 and 31,548.42

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Solution

The fourth proportional to 84,167.64, 126,218.66 and 31,548.42 is: 47,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,167.64 : 126,218.66 = 31,548.42 : x
  2. Step 2: Convert to fraction form
    84,167.64/126,218.66 = 31,548.42/x
  3. Step 3: Cross multiply
    84,167.64x = 126,218.66 × 31,548.42
  4. Step 4: Simplify right side
    84,167.64x = 3,981,999,139.78
  5. Step 5: Solve for x
    x = 3,981,999,139.78/84,167.64
  6. Step 6: Final answer
    x = 47,310.33

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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.