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Finding the Fourth Proportional to 71,559.44, 98,753.91 and 39,729.68

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Solution

The fourth proportional to 71,559.44, 98,753.91 and 39,729.68 is: 54,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,559.44 : 98,753.91 = 39,729.68 : x
  2. Step 2: Convert to fraction form
    71,559.44/98,753.91 = 39,729.68/x
  3. Step 3: Cross multiply
    71,559.44x = 98,753.91 × 39,729.68
  4. Step 4: Simplify right side
    71,559.44x = 3,923,461,243.05
  5. Step 5: Solve for x
    x = 3,923,461,243.05/71,559.44
  6. Step 6: Final answer
    x = 54,828.00

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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.