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Finding the Fourth Proportional to 54,602.80, 81,904.15 and 15,159.90

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Solution

The fourth proportional to 54,602.80, 81,904.15 and 15,159.90 is: 22,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,602.80 : 81,904.15 = 15,159.90 : x
  2. Step 2: Convert to fraction form
    54,602.80/81,904.15 = 15,159.90/x
  3. Step 3: Cross multiply
    54,602.80x = 81,904.15 × 15,159.90
  4. Step 4: Simplify right side
    54,602.80x = 1,241,658,723.59
  5. Step 5: Solve for x
    x = 1,241,658,723.59/54,602.80
  6. Step 6: Final answer
    x = 22,739.84

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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.