Home / 82,083.85-123,125.81-19,754.35

Finding the Fourth Proportional to 82,083.85, 123,125.81 and 19,754.35

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Solution

The fourth proportional to 82,083.85, 123,125.81 and 19,754.35 is: 29,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,083.85 : 123,125.81 = 19,754.35 : x
  2. Step 2: Convert to fraction form
    82,083.85/123,125.81 = 19,754.35/x
  3. Step 3: Cross multiply
    82,083.85x = 123,125.81 × 19,754.35
  4. Step 4: Simplify right side
    82,083.85x = 2,432,269,938.19
  5. Step 5: Solve for x
    x = 2,432,269,938.19/82,083.85
  6. Step 6: Final answer
    x = 29,631.53

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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.