Home / 57,145.20-85,766.40-25,603.80

Finding the Fourth Proportional to 57,145.20, 85,766.40 and 25,603.80

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Solution

The fourth proportional to 57,145.20, 85,766.40 and 25,603.80 is: 38,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.20 : 85,766.40 = 25,603.80 : x
  2. Step 2: Convert to fraction form
    57,145.20/85,766.40 = 25,603.80/x
  3. Step 3: Cross multiply
    57,145.20x = 85,766.40 × 25,603.80
  4. Step 4: Simplify right side
    57,145.20x = 2,195,945,752.32
  5. Step 5: Solve for x
    x = 2,195,945,752.32/57,145.20
  6. Step 6: Final answer
    x = 38,427.48

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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.