Home / 82,278.72-123,324.80-34,864.29

Finding the Fourth Proportional to 82,278.72, 123,324.80 and 34,864.29

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Solution

The fourth proportional to 82,278.72, 123,324.80 and 34,864.29 is: 52,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.72 : 123,324.80 = 34,864.29 : x
  2. Step 2: Convert to fraction form
    82,278.72/123,324.80 = 34,864.29/x
  3. Step 3: Cross multiply
    82,278.72x = 123,324.80 × 34,864.29
  4. Step 4: Simplify right side
    82,278.72x = 4,299,631,417.07
  5. Step 5: Solve for x
    x = 4,299,631,417.07/82,278.72
  6. Step 6: Final answer
    x = 52,256.91

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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.