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Finding the Fourth Proportional to 41,478, 57,219.90 and 28,053.96

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Solution

The fourth proportional to 41,478, 57,219.90 and 28,053.96 is: 38,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,478 : 57,219.90 = 28,053.96 : x
  2. Step 2: Convert to fraction form
    41,478/57,219.90 = 28,053.96/x
  3. Step 3: Cross multiply
    41,478x = 57,219.90 × 28,053.96
  4. Step 4: Simplify right side
    41,478x = 1,605,244,785.80
  5. Step 5: Solve for x
    x = 1,605,244,785.80/41,478
  6. Step 6: Final answer
    x = 38,701.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.