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Finding the Fourth Proportional to 73,260, 101,098.80 and 39,726

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Solution

The fourth proportional to 73,260, 101,098.80 and 39,726 is: 54,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,260 : 101,098.80 = 39,726 : x
  2. Step 2: Convert to fraction form
    73,260/101,098.80 = 39,726/x
  3. Step 3: Cross multiply
    73,260x = 101,098.80 × 39,726
  4. Step 4: Simplify right side
    73,260x = 4,016,250,928.80
  5. Step 5: Solve for x
    x = 4,016,250,928.80/73,260
  6. Step 6: Final answer
    x = 54,821.88

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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.