Home / 54,989.28-75,887.28-31,116.96

Finding the Fourth Proportional to 54,989.28, 75,887.28 and 31,116.96

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Solution

The fourth proportional to 54,989.28, 75,887.28 and 31,116.96 is: 42,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,989.28 : 75,887.28 = 31,116.96 : x
  2. Step 2: Convert to fraction form
    54,989.28/75,887.28 = 31,116.96/x
  3. Step 3: Cross multiply
    54,989.28x = 75,887.28 × 31,116.96
  4. Step 4: Simplify right side
    54,989.28x = 2,361,381,456.27
  5. Step 5: Solve for x
    x = 2,361,381,456.27/54,989.28
  6. Step 6: Final answer
    x = 42,942.58

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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.