Home / 48,378.56-72,512.34-20,293.42

Finding the Fourth Proportional to 48,378.56, 72,512.34 and 20,293.42

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Solution

The fourth proportional to 48,378.56, 72,512.34 and 20,293.42 is: 30,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,378.56 : 72,512.34 = 20,293.42 : x
  2. Step 2: Convert to fraction form
    48,378.56/72,512.34 = 20,293.42/x
  3. Step 3: Cross multiply
    48,378.56x = 72,512.34 × 20,293.42
  4. Step 4: Simplify right side
    48,378.56x = 1,471,523,370.80
  5. Step 5: Solve for x
    x = 1,471,523,370.80/48,378.56
  6. Step 6: Final answer
    x = 30,416.85

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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.