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Finding the Fourth Proportional to 54,007.80, 81,011.70 and 36,293.10

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Solution

The fourth proportional to 54,007.80, 81,011.70 and 36,293.10 is: 54,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,007.80 : 81,011.70 = 36,293.10 : x
  2. Step 2: Convert to fraction form
    54,007.80/81,011.70 = 36,293.10/x
  3. Step 3: Cross multiply
    54,007.80x = 81,011.70 × 36,293.10
  4. Step 4: Simplify right side
    54,007.80x = 2,940,165,729.27
  5. Step 5: Solve for x
    x = 2,940,165,729.27/54,007.80
  6. Step 6: Final answer
    x = 54,439.65

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1.5x scale

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.