Home / 54,877.28-82,315.92-21,579.15

Finding the Fourth Proportional to 54,877.28, 82,315.92 and 21,579.15

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Solution

The fourth proportional to 54,877.28, 82,315.92 and 21,579.15 is: 32,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,877.28 : 82,315.92 = 21,579.15 : x
  2. Step 2: Convert to fraction form
    54,877.28/82,315.92 = 21,579.15/x
  3. Step 3: Cross multiply
    54,877.28x = 82,315.92 × 21,579.15
  4. Step 4: Simplify right side
    54,877.28x = 1,776,307,585.07
  5. Step 5: Solve for x
    x = 1,776,307,585.07/54,877.28
  6. Step 6: Final answer
    x = 32,368.73

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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.