Home / 51,979.97-71,732.40-28,106.66

Finding the Fourth Proportional to 51,979.97, 71,732.40 and 28,106.66

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Solution

The fourth proportional to 51,979.97, 71,732.40 and 28,106.66 is: 38,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.97 : 71,732.40 = 28,106.66 : x
  2. Step 2: Convert to fraction form
    51,979.97/71,732.40 = 28,106.66/x
  3. Step 3: Cross multiply
    51,979.97x = 71,732.40 × 28,106.66
  4. Step 4: Simplify right side
    51,979.97x = 2,016,158,177.78
  5. Step 5: Solve for x
    x = 2,016,158,177.78/51,979.97
  6. Step 6: Final answer
    x = 38,787.21

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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.