Home / 83,732.64-125,647.92-31,179.36

Finding the Fourth Proportional to 83,732.64, 125,647.92 and 31,179.36

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Solution

The fourth proportional to 83,732.64, 125,647.92 and 31,179.36 is: 46,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,732.64 : 125,647.92 = 31,179.36 : x
  2. Step 2: Convert to fraction form
    83,732.64/125,647.92 = 31,179.36/x
  3. Step 3: Cross multiply
    83,732.64x = 125,647.92 × 31,179.36
  4. Step 4: Simplify right side
    83,732.64x = 3,917,621,730.93
  5. Step 5: Solve for x
    x = 3,917,621,730.93/83,732.64
  6. Step 6: Final answer
    x = 46,787.27

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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.