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Finding the Fourth Proportional to 66,344, 91,561.44 and 38,047.04

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Solution

The fourth proportional to 66,344, 91,561.44 and 38,047.04 is: 52,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,344 : 91,561.44 = 38,047.04 : x
  2. Step 2: Convert to fraction form
    66,344/91,561.44 = 38,047.04/x
  3. Step 3: Cross multiply
    66,344x = 91,561.44 × 38,047.04
  4. Step 4: Simplify right side
    66,344x = 3,483,641,770.14
  5. Step 5: Solve for x
    x = 3,483,641,770.14/66,344
  6. Step 6: Final answer
    x = 52,508.77

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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.