Home / 54,724.20-82,151.10-54,335.40

Finding the Fourth Proportional to 54,724.20, 82,151.10 and 54,335.40

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Solution

The fourth proportional to 54,724.20, 82,151.10 and 54,335.40 is: 81,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,724.20 : 82,151.10 = 54,335.40 : x
  2. Step 2: Convert to fraction form
    54,724.20/82,151.10 = 54,335.40/x
  3. Step 3: Cross multiply
    54,724.20x = 82,151.10 × 54,335.40
  4. Step 4: Simplify right side
    54,724.20x = 4,463,712,878.94
  5. Step 5: Solve for x
    x = 4,463,712,878.94/54,724.20
  6. Step 6: Final answer
    x = 81,567.44

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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.