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Finding the Fourth Proportional to 72,521.88, 100,081.04 and 43,843.11

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Solution

The fourth proportional to 72,521.88, 100,081.04 and 43,843.11 is: 60,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,521.88 : 100,081.04 = 43,843.11 : x
  2. Step 2: Convert to fraction form
    72,521.88/100,081.04 = 43,843.11/x
  3. Step 3: Cross multiply
    72,521.88x = 100,081.04 × 43,843.11
  4. Step 4: Simplify right side
    72,521.88x = 4,387,863,826.42
  5. Step 5: Solve for x
    x = 4,387,863,826.42/72,521.88
  6. Step 6: Final answer
    x = 60,504.00

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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.