Home / 57,128.29-85,691.51-15,575.29

Finding the Fourth Proportional to 57,128.29, 85,691.51 and 15,575.29

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Solution

The fourth proportional to 57,128.29, 85,691.51 and 15,575.29 is: 23,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.29 : 85,691.51 = 15,575.29 : x
  2. Step 2: Convert to fraction form
    57,128.29/85,691.51 = 15,575.29/x
  3. Step 3: Cross multiply
    57,128.29x = 85,691.51 × 15,575.29
  4. Step 4: Simplify right side
    57,128.29x = 1,334,670,118.79
  5. Step 5: Solve for x
    x = 1,334,670,118.79/57,128.29
  6. Step 6: Final answer
    x = 23,362.68

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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.