Home / 50,079.18-75,128.80-18,489.44

Finding the Fourth Proportional to 50,079.18, 75,128.80 and 18,489.44

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Solution

The fourth proportional to 50,079.18, 75,128.80 and 18,489.44 is: 27,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,079.18 : 75,128.80 = 18,489.44 : x
  2. Step 2: Convert to fraction form
    50,079.18/75,128.80 = 18,489.44/x
  3. Step 3: Cross multiply
    50,079.18x = 75,128.80 × 18,489.44
  4. Step 4: Simplify right side
    50,079.18x = 1,389,088,971.78
  5. Step 5: Solve for x
    x = 1,389,088,971.78/50,079.18
  6. Step 6: Final answer
    x = 27,737.85

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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.