Home / 54,826.74-82,231.10-19,279.70

Finding the Fourth Proportional to 54,826.74, 82,231.10 and 19,279.70

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Solution

The fourth proportional to 54,826.74, 82,231.10 and 19,279.70 is: 28,916.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,826.74 : 82,231.10 = 19,279.70 : x
  2. Step 2: Convert to fraction form
    54,826.74/82,231.10 = 19,279.70/x
  3. Step 3: Cross multiply
    54,826.74x = 82,231.10 × 19,279.70
  4. Step 4: Simplify right side
    54,826.74x = 1,585,390,938.67
  5. Step 5: Solve for x
    x = 1,585,390,938.67/54,826.74
  6. Step 6: Final answer
    x = 28,916.38

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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.