Home / 49,835.12-74,760.40-20,255.04

Finding the Fourth Proportional to 49,835.12, 74,760.40 and 20,255.04

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Solution

The fourth proportional to 49,835.12, 74,760.40 and 20,255.04 is: 30,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,835.12 : 74,760.40 = 20,255.04 : x
  2. Step 2: Convert to fraction form
    49,835.12/74,760.40 = 20,255.04/x
  3. Step 3: Cross multiply
    49,835.12x = 74,760.40 × 20,255.04
  4. Step 4: Simplify right side
    49,835.12x = 1,514,274,892.42
  5. Step 5: Solve for x
    x = 1,514,274,892.42/49,835.12
  6. Step 6: Final answer
    x = 30,385.70

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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.