Home / 57,275.30-85,878.29-25,679.50

Finding the Fourth Proportional to 57,275.30, 85,878.29 and 25,679.50

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Solution

The fourth proportional to 57,275.30, 85,878.29 and 25,679.50 is: 38,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.30 : 85,878.29 = 25,679.50 : x
  2. Step 2: Convert to fraction form
    57,275.30/85,878.29 = 25,679.50/x
  3. Step 3: Cross multiply
    57,275.30x = 85,878.29 × 25,679.50
  4. Step 4: Simplify right side
    57,275.30x = 2,205,311,397.56
  5. Step 5: Solve for x
    x = 2,205,311,397.56/57,275.30
  6. Step 6: Final answer
    x = 38,503.71

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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.