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Finding the Fourth Proportional to 71,101.86, 98,119.98 and 39,270.48

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Solution

The fourth proportional to 71,101.86, 98,119.98 and 39,270.48 is: 54,192.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,101.86 : 98,119.98 = 39,270.48 : x
  2. Step 2: Convert to fraction form
    71,101.86/98,119.98 = 39,270.48/x
  3. Step 3: Cross multiply
    71,101.86x = 98,119.98 × 39,270.48
  4. Step 4: Simplify right side
    71,101.86x = 3,853,218,712.19
  5. Step 5: Solve for x
    x = 3,853,218,712.19/71,101.86
  6. Step 6: Final answer
    x = 54,192.94

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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.