Home / 57,213.28-85,806.24-19,774.68

Finding the Fourth Proportional to 57,213.28, 85,806.24 and 19,774.68

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Solution

The fourth proportional to 57,213.28, 85,806.24 and 19,774.68 is: 29,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.28 : 85,806.24 = 19,774.68 : x
  2. Step 2: Convert to fraction form
    57,213.28/85,806.24 = 19,774.68/x
  3. Step 3: Cross multiply
    57,213.28x = 85,806.24 × 19,774.68
  4. Step 4: Simplify right side
    57,213.28x = 1,696,790,938.00
  5. Step 5: Solve for x
    x = 1,696,790,938.00/57,213.28
  6. Step 6: Final answer
    x = 29,657.29

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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.