Home / 54,114.31-81,144.72-31,630.66

Finding the Fourth Proportional to 54,114.31, 81,144.72 and 31,630.66

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Solution

The fourth proportional to 54,114.31, 81,144.72 and 31,630.66 is: 47,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,114.31 : 81,144.72 = 31,630.66 : x
  2. Step 2: Convert to fraction form
    54,114.31/81,144.72 = 31,630.66/x
  3. Step 3: Cross multiply
    54,114.31x = 81,144.72 × 31,630.66
  4. Step 4: Simplify right side
    54,114.31x = 2,566,661,049.12
  5. Step 5: Solve for x
    x = 2,566,661,049.12/54,114.31
  6. Step 6: Final answer
    x = 47,430.36

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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.