Home / 57,139.40-85,764.38-27,578.04

Finding the Fourth Proportional to 57,139.40, 85,764.38 and 27,578.04

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Solution

The fourth proportional to 57,139.40, 85,764.38 and 27,578.04 is: 41,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.40 : 85,764.38 = 27,578.04 : x
  2. Step 2: Convert to fraction form
    57,139.40/85,764.38 = 27,578.04/x
  3. Step 3: Cross multiply
    57,139.40x = 85,764.38 × 27,578.04
  4. Step 4: Simplify right side
    57,139.40x = 2,365,213,443.78
  5. Step 5: Solve for x
    x = 2,365,213,443.78/57,139.40
  6. Step 6: Final answer
    x = 41,393.74

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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.