Home / 57,139.38-85,764.35-27,578.03

Finding the Fourth Proportional to 57,139.38, 85,764.35 and 27,578.03

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Solution

The fourth proportional to 57,139.38, 85,764.35 and 27,578.03 is: 41,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.38 : 85,764.35 = 27,578.03 : x
  2. Step 2: Convert to fraction form
    57,139.38/85,764.35 = 27,578.03/x
  3. Step 3: Cross multiply
    57,139.38x = 85,764.35 × 27,578.03
  4. Step 4: Simplify right side
    57,139.38x = 2,365,211,457.35
  5. Step 5: Solve for x
    x = 2,365,211,457.35/57,139.38
  6. Step 6: Final answer
    x = 41,393.72

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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.