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Finding the Fourth Proportional to 44,077, 66,071.76 and 20,661.52

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Solution

The fourth proportional to 44,077, 66,071.76 and 20,661.52 is: 30,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,077 : 66,071.76 = 20,661.52 : x
  2. Step 2: Convert to fraction form
    44,077/66,071.76 = 20,661.52/x
  3. Step 3: Cross multiply
    44,077x = 66,071.76 × 20,661.52
  4. Step 4: Simplify right side
    44,077x = 1,365,142,990.68
  5. Step 5: Solve for x
    x = 1,365,142,990.68/44,077
  6. Step 6: Final answer
    x = 30,971.78

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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.