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Finding the Fourth Proportional to 71,089.92, 98,104.03 and 39,258.74

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Solution

The fourth proportional to 71,089.92, 98,104.03 and 39,258.74 is: 54,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.92 : 98,104.03 = 39,258.74 : x
  2. Step 2: Convert to fraction form
    71,089.92/98,104.03 = 39,258.74/x
  3. Step 3: Cross multiply
    71,089.92x = 98,104.03 × 39,258.74
  4. Step 4: Simplify right side
    71,089.92x = 3,851,440,753.84
  5. Step 5: Solve for x
    x = 3,851,440,753.84/71,089.92
  6. Step 6: Final answer
    x = 54,177.03

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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.