Home / 55,008.72-82,438.56-39,391.92

Finding the Fourth Proportional to 55,008.72, 82,438.56 and 39,391.92

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Solution

The fourth proportional to 55,008.72, 82,438.56 and 39,391.92 is: 59,034.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,008.72 : 82,438.56 = 39,391.92 : x
  2. Step 2: Convert to fraction form
    55,008.72/82,438.56 = 39,391.92/x
  3. Step 3: Cross multiply
    55,008.72x = 82,438.56 × 39,391.92
  4. Step 4: Simplify right side
    55,008.72x = 3,247,413,160.44
  5. Step 5: Solve for x
    x = 3,247,413,160.44/55,008.72
  6. Step 6: Final answer
    x = 59,034.52

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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.