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Finding the Fourth Proportional to 44,770, 67,169.64 and 13,605.28

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Solution

The fourth proportional to 44,770, 67,169.64 and 13,605.28 is: 20,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,770 : 67,169.64 = 13,605.28 : x
  2. Step 2: Convert to fraction form
    44,770/67,169.64 = 13,605.28/x
  3. Step 3: Cross multiply
    44,770x = 67,169.64 × 13,605.28
  4. Step 4: Simplify right side
    44,770x = 913,861,759.70
  5. Step 5: Solve for x
    x = 913,861,759.70/44,770
  6. Step 6: Final answer
    x = 20,412.37

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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.