Home / 54,468.32-81,671.04-21,149.45

Finding the Fourth Proportional to 54,468.32, 81,671.04 and 21,149.45

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Solution

The fourth proportional to 54,468.32, 81,671.04 and 21,149.45 is: 31,711.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,468.32 : 81,671.04 = 21,149.45 : x
  2. Step 2: Convert to fraction form
    54,468.32/81,671.04 = 21,149.45/x
  3. Step 3: Cross multiply
    54,468.32x = 81,671.04 × 21,149.45
  4. Step 4: Simplify right side
    54,468.32x = 1,727,297,474.84
  5. Step 5: Solve for x
    x = 1,727,297,474.84/54,468.32
  6. Step 6: Final answer
    x = 31,711.97

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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.