Home / 49,808.55-74,732.85-20,228.70

Finding the Fourth Proportional to 49,808.55, 74,732.85 and 20,228.70

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Solution

The fourth proportional to 49,808.55, 74,732.85 and 20,228.70 is: 30,351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,808.55 : 74,732.85 = 20,228.70 : x
  2. Step 2: Convert to fraction form
    49,808.55/74,732.85 = 20,228.70/x
  3. Step 3: Cross multiply
    49,808.55x = 74,732.85 × 20,228.70
  4. Step 4: Simplify right side
    49,808.55x = 1,511,748,402.80
  5. Step 5: Solve for x
    x = 1,511,748,402.80/49,808.55
  6. Step 6: Final answer
    x = 30,351.18

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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.