Home / 54,658.20-81,987.30-49,301.40

Finding the Fourth Proportional to 54,658.20, 81,987.30 and 49,301.40

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Solution

The fourth proportional to 54,658.20, 81,987.30 and 49,301.40 is: 73,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,658.20 : 81,987.30 = 49,301.40 : x
  2. Step 2: Convert to fraction form
    54,658.20/81,987.30 = 49,301.40/x
  3. Step 3: Cross multiply
    54,658.20x = 81,987.30 × 49,301.40
  4. Step 4: Simplify right side
    54,658.20x = 4,042,088,672.22
  5. Step 5: Solve for x
    x = 4,042,088,672.22/54,658.20
  6. Step 6: Final answer
    x = 73,952.10

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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.