Home / 42,793.20-64,189.80-30,327.30

Finding the Fourth Proportional to 42,793.20, 64,189.80 and 30,327.30

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Solution

The fourth proportional to 42,793.20, 64,189.80 and 30,327.30 is: 45,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,793.20 : 64,189.80 = 30,327.30 : x
  2. Step 2: Convert to fraction form
    42,793.20/64,189.80 = 30,327.30/x
  3. Step 3: Cross multiply
    42,793.20x = 64,189.80 × 30,327.30
  4. Step 4: Simplify right side
    42,793.20x = 1,946,703,321.54
  5. Step 5: Solve for x
    x = 1,946,703,321.54/42,793.20
  6. Step 6: Final answer
    x = 45,490.95

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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.