Home / 49,805.88-74,715.30-18,211.02

Finding the Fourth Proportional to 49,805.88, 74,715.30 and 18,211.02

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Solution

The fourth proportional to 49,805.88, 74,715.30 and 18,211.02 is: 27,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,805.88 : 74,715.30 = 18,211.02 : x
  2. Step 2: Convert to fraction form
    49,805.88/74,715.30 = 18,211.02/x
  3. Step 3: Cross multiply
    49,805.88x = 74,715.30 × 18,211.02
  4. Step 4: Simplify right side
    49,805.88x = 1,360,641,822.61
  5. Step 5: Solve for x
    x = 1,360,641,822.61/49,805.88
  6. Step 6: Final answer
    x = 27,318.90

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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.