Home / 83,723.64-125,634.42-31,170.36

Finding the Fourth Proportional to 83,723.64, 125,634.42 and 31,170.36

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Solution

The fourth proportional to 83,723.64, 125,634.42 and 31,170.36 is: 46,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,723.64 : 125,634.42 = 31,170.36 : x
  2. Step 2: Convert to fraction form
    83,723.64/125,634.42 = 31,170.36/x
  3. Step 3: Cross multiply
    83,723.64x = 125,634.42 × 31,170.36
  4. Step 4: Simplify right side
    83,723.64x = 3,916,070,099.79
  5. Step 5: Solve for x
    x = 3,916,070,099.79/83,723.64
  6. Step 6: Final answer
    x = 46,773.77

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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.