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Finding the Fourth Proportional to 73,608, 101,581.20 and 40,076.16

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Solution

The fourth proportional to 73,608, 101,581.20 and 40,076.16 is: 55,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,608 : 101,581.20 = 40,076.16 : x
  2. Step 2: Convert to fraction form
    73,608/101,581.20 = 40,076.16/x
  3. Step 3: Cross multiply
    73,608x = 101,581.20 × 40,076.16
  4. Step 4: Simplify right side
    73,608x = 4,070,984,424.19
  5. Step 5: Solve for x
    x = 4,070,984,424.19/73,608
  6. Step 6: Final answer
    x = 55,306.28

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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.