Home / 61,321.66-91,981.53-16,947.43

Finding the Fourth Proportional to 61,321.66, 91,981.53 and 16,947.43

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Solution

The fourth proportional to 61,321.66, 91,981.53 and 16,947.43 is: 25,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.66 : 91,981.53 = 16,947.43 : x
  2. Step 2: Convert to fraction form
    61,321.66/91,981.53 = 16,947.43/x
  3. Step 3: Cross multiply
    61,321.66x = 91,981.53 × 16,947.43
  4. Step 4: Simplify right side
    61,321.66x = 1,558,850,540.97
  5. Step 5: Solve for x
    x = 1,558,850,540.97/61,321.66
  6. Step 6: Final answer
    x = 25,420.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.