Home / 54,331.10-81,387.30-36,616.40

Finding the Fourth Proportional to 54,331.10, 81,387.30 and 36,616.40

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Solution

The fourth proportional to 54,331.10, 81,387.30 and 36,616.40 is: 54,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,331.10 : 81,387.30 = 36,616.40 : x
  2. Step 2: Convert to fraction form
    54,331.10/81,387.30 = 36,616.40/x
  3. Step 3: Cross multiply
    54,331.10x = 81,387.30 × 36,616.40
  4. Step 4: Simplify right side
    54,331.10x = 2,980,109,931.72
  5. Step 5: Solve for x
    x = 2,980,109,931.72/54,331.10
  6. Step 6: Final answer
    x = 54,850.90

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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.