Home / 54,308.08-81,442.13-18,760.35

Finding the Fourth Proportional to 54,308.08, 81,442.13 and 18,760.35

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Solution

The fourth proportional to 54,308.08, 81,442.13 and 18,760.35 is: 28,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,308.08 : 81,442.13 = 18,760.35 : x
  2. Step 2: Convert to fraction form
    54,308.08/81,442.13 = 18,760.35/x
  3. Step 3: Cross multiply
    54,308.08x = 81,442.13 × 18,760.35
  4. Step 4: Simplify right side
    54,308.08x = 1,527,882,910.45
  5. Step 5: Solve for x
    x = 1,527,882,910.45/54,308.08
  6. Step 6: Final answer
    x = 28,133.62

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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.