Home / 57,006.56-78,660.24-31,851.20

Finding the Fourth Proportional to 57,006.56, 78,660.24 and 31,851.20

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Solution

The fourth proportional to 57,006.56, 78,660.24 and 31,851.20 is: 43,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,006.56 : 78,660.24 = 31,851.20 : x
  2. Step 2: Convert to fraction form
    57,006.56/78,660.24 = 31,851.20/x
  3. Step 3: Cross multiply
    57,006.56x = 78,660.24 × 31,851.20
  4. Step 4: Simplify right side
    57,006.56x = 2,505,423,036.29
  5. Step 5: Solve for x
    x = 2,505,423,036.29/57,006.56
  6. Step 6: Final answer
    x = 43,949.73

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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.