Home / 57,139.40-85,726.56-25,575.96

Finding the Fourth Proportional to 57,139.40, 85,726.56 and 25,575.96

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Solution

The fourth proportional to 57,139.40, 85,726.56 and 25,575.96 is: 38,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.40 : 85,726.56 = 25,575.96 : x
  2. Step 2: Convert to fraction form
    57,139.40/85,726.56 = 25,575.96/x
  3. Step 3: Cross multiply
    57,139.40x = 85,726.56 × 25,575.96
  4. Step 4: Simplify right side
    57,139.40x = 2,192,539,069.50
  5. Step 5: Solve for x
    x = 2,192,539,069.50/57,139.40
  6. Step 6: Final answer
    x = 38,371.76

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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.