Home / 50,287.08-75,456.80-20,308.72

Finding the Fourth Proportional to 50,287.08, 75,456.80 and 20,308.72

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Solution

The fourth proportional to 50,287.08, 75,456.80 and 20,308.72 is: 30,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,287.08 : 75,456.80 = 20,308.72 : x
  2. Step 2: Convert to fraction form
    50,287.08/75,456.80 = 20,308.72/x
  3. Step 3: Cross multiply
    50,287.08x = 75,456.80 × 20,308.72
  4. Step 4: Simplify right side
    50,287.08x = 1,532,431,023.30
  5. Step 5: Solve for x
    x = 1,532,431,023.30/50,287.08
  6. Step 6: Final answer
    x = 30,473.65

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1.5x scale

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.