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Finding the Fourth Proportional to 57,229.52, 85,831.80 and 29,119.76

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Solution

The fourth proportional to 57,229.52, 85,831.80 and 29,119.76 is: 43,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.52 : 85,831.80 = 29,119.76 : x
  2. Step 2: Convert to fraction form
    57,229.52/85,831.80 = 29,119.76/x
  3. Step 3: Cross multiply
    57,229.52x = 85,831.80 × 29,119.76
  4. Step 4: Simplify right side
    57,229.52x = 2,499,401,416.37
  5. Step 5: Solve for x
    x = 2,499,401,416.37/57,229.52
  6. Step 6: Final answer
    x = 43,673.29

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1.5x scale

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.