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Finding the Fourth Proportional to 79,077, 109,125.24 and 43,266.48

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Solution

The fourth proportional to 79,077, 109,125.24 and 43,266.48 is: 59,707.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077 : 109,125.24 = 43,266.48 : x
  2. Step 2: Convert to fraction form
    79,077/109,125.24 = 43,266.48/x
  3. Step 3: Cross multiply
    79,077x = 109,125.24 × 43,266.48
  4. Step 4: Simplify right side
    79,077x = 4,721,465,013.96
  5. Step 5: Solve for x
    x = 4,721,465,013.96/79,077
  6. Step 6: Final answer
    x = 59,707.18

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1.5x scale

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.