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Finding the Fourth Proportional to 71,150.54, 98,184.54 and 39,318.76

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Solution

The fourth proportional to 71,150.54, 98,184.54 and 39,318.76 is: 54,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.54 : 98,184.54 = 39,318.76 : x
  2. Step 2: Convert to fraction form
    71,150.54/98,184.54 = 39,318.76/x
  3. Step 3: Cross multiply
    71,150.54x = 98,184.54 × 39,318.76
  4. Step 4: Simplify right side
    71,150.54x = 3,860,494,363.97
  5. Step 5: Solve for x
    x = 3,860,494,363.97/71,150.54
  6. Step 6: Final answer
    x = 54,258.12

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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.