Home / 57,154.18-78,872.06-31,660.44

Finding the Fourth Proportional to 57,154.18, 78,872.06 and 31,660.44

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Solution

The fourth proportional to 57,154.18, 78,872.06 and 31,660.44 is: 43,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,154.18 : 78,872.06 = 31,660.44 : x
  2. Step 2: Convert to fraction form
    57,154.18/78,872.06 = 31,660.44/x
  3. Step 3: Cross multiply
    57,154.18x = 78,872.06 × 31,660.44
  4. Step 4: Simplify right side
    57,154.18x = 2,497,124,123.31
  5. Step 5: Solve for x
    x = 2,497,124,123.31/57,154.18
  6. Step 6: Final answer
    x = 43,691.01

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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.