Home / 50,430.20-75,645.30-28,311.80

Finding the Fourth Proportional to 50,430.20, 75,645.30 and 28,311.80

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Solution

The fourth proportional to 50,430.20, 75,645.30 and 28,311.80 is: 42,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,430.20 : 75,645.30 = 28,311.80 : x
  2. Step 2: Convert to fraction form
    50,430.20/75,645.30 = 28,311.80/x
  3. Step 3: Cross multiply
    50,430.20x = 75,645.30 × 28,311.80
  4. Step 4: Simplify right side
    50,430.20x = 2,141,654,604.54
  5. Step 5: Solve for x
    x = 2,141,654,604.54/50,430.20
  6. Step 6: Final answer
    x = 42,467.70

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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.