Home / 50,281.20-75,419.37-18,691.20

Finding the Fourth Proportional to 50,281.20, 75,419.37 and 18,691.20

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Solution

The fourth proportional to 50,281.20, 75,419.37 and 18,691.20 is: 28,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,281.20 : 75,419.37 = 18,691.20 : x
  2. Step 2: Convert to fraction form
    50,281.20/75,419.37 = 18,691.20/x
  3. Step 3: Cross multiply
    50,281.20x = 75,419.37 × 18,691.20
  4. Step 4: Simplify right side
    50,281.20x = 1,409,678,528.54
  5. Step 5: Solve for x
    x = 1,409,678,528.54/50,281.20
  6. Step 6: Final answer
    x = 28,035.90

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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.