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Finding the Fourth Proportional to 54,159, 81,208.80 and 16,708.68

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Solution

The fourth proportional to 54,159, 81,208.80 and 16,708.68 is: 25,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,159 : 81,208.80 = 16,708.68 : x
  2. Step 2: Convert to fraction form
    54,159/81,208.80 = 16,708.68/x
  3. Step 3: Cross multiply
    54,159x = 81,208.80 × 16,708.68
  4. Step 4: Simplify right side
    54,159x = 1,356,891,852.38
  5. Step 5: Solve for x
    x = 1,356,891,852.38/54,159
  6. Step 6: Final answer
    x = 25,053.86

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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.