Home / 57,269.28-85,883.34-19,819.19

Finding the Fourth Proportional to 57,269.28, 85,883.34 and 19,819.19

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Solution

The fourth proportional to 57,269.28, 85,883.34 and 19,819.19 is: 29,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.28 : 85,883.34 = 19,819.19 : x
  2. Step 2: Convert to fraction form
    57,269.28/85,883.34 = 19,819.19/x
  3. Step 3: Cross multiply
    57,269.28x = 85,883.34 × 19,819.19
  4. Step 4: Simplify right side
    57,269.28x = 1,702,138,233.29
  5. Step 5: Solve for x
    x = 1,702,138,233.29/57,269.28
  6. Step 6: Final answer
    x = 29,721.66

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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.