Home / 54,082.65-81,128.04-14,639.10

Finding the Fourth Proportional to 54,082.65, 81,128.04 and 14,639.10

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Solution

The fourth proportional to 54,082.65, 81,128.04 and 14,639.10 is: 21,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,082.65 : 81,128.04 = 14,639.10 : x
  2. Step 2: Convert to fraction form
    54,082.65/81,128.04 = 14,639.10/x
  3. Step 3: Cross multiply
    54,082.65x = 81,128.04 × 14,639.10
  4. Step 4: Simplify right side
    54,082.65x = 1,187,641,490.36
  5. Step 5: Solve for x
    x = 1,187,641,490.36/54,082.65
  6. Step 6: Final answer
    x = 21,959.75

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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.