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Finding the Fourth Proportional to 51,470.40, 77,234.40 and 21,883.20

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Solution

The fourth proportional to 51,470.40, 77,234.40 and 21,883.20 is: 32,837.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,470.40 : 77,234.40 = 21,883.20 : x
  2. Step 2: Convert to fraction form
    51,470.40/77,234.40 = 21,883.20/x
  3. Step 3: Cross multiply
    51,470.40x = 77,234.40 × 21,883.20
  4. Step 4: Simplify right side
    51,470.40x = 1,690,135,822.08
  5. Step 5: Solve for x
    x = 1,690,135,822.08/51,470.40
  6. Step 6: Final answer
    x = 32,837.04

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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.