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Finding the Fourth Proportional to 54,649.80, 81,965.25 and 15,207.12

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Solution

The fourth proportional to 54,649.80, 81,965.25 and 15,207.12 is: 22,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,649.80 : 81,965.25 = 15,207.12 : x
  2. Step 2: Convert to fraction form
    54,649.80/81,965.25 = 15,207.12/x
  3. Step 3: Cross multiply
    54,649.80x = 81,965.25 × 15,207.12
  4. Step 4: Simplify right side
    54,649.80x = 1,246,455,392.58
  5. Step 5: Solve for x
    x = 1,246,455,392.58/54,649.80
  6. Step 6: Final answer
    x = 22,808.05

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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.