Home / 54,079.59-81,122.49-14,639.88

Finding the Fourth Proportional to 54,079.59, 81,122.49 and 14,639.88

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Solution

The fourth proportional to 54,079.59, 81,122.49 and 14,639.88 is: 21,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,079.59 : 81,122.49 = 14,639.88 : x
  2. Step 2: Convert to fraction form
    54,079.59/81,122.49 = 14,639.88/x
  3. Step 3: Cross multiply
    54,079.59x = 81,122.49 × 14,639.88
  4. Step 4: Simplify right side
    54,079.59x = 1,187,623,518.90
  5. Step 5: Solve for x
    x = 1,187,623,518.90/54,079.59
  6. Step 6: Final answer
    x = 21,960.66

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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.