Home / 83,964.65-125,979.80-31,361.85

Finding the Fourth Proportional to 83,964.65, 125,979.80 and 31,361.85

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Solution

The fourth proportional to 83,964.65, 125,979.80 and 31,361.85 is: 47,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,964.65 : 125,979.80 = 31,361.85 : x
  2. Step 2: Convert to fraction form
    83,964.65/125,979.80 = 31,361.85/x
  3. Step 3: Cross multiply
    83,964.65x = 125,979.80 × 31,361.85
  4. Step 4: Simplify right side
    83,964.65x = 3,950,959,433.82
  5. Step 5: Solve for x
    x = 3,950,959,433.82/83,964.65
  6. Step 6: Final answer
    x = 47,055.04

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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.