Home / 48,132.20-72,227.45-20,430.20

Finding the Fourth Proportional to 48,132.20, 72,227.45 and 20,430.20

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Solution

The fourth proportional to 48,132.20, 72,227.45 and 20,430.20 is: 30,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,132.20 : 72,227.45 = 20,430.20 : x
  2. Step 2: Convert to fraction form
    48,132.20/72,227.45 = 20,430.20/x
  3. Step 3: Cross multiply
    48,132.20x = 72,227.45 × 20,430.20
  4. Step 4: Simplify right side
    48,132.20x = 1,475,620,785.70
  5. Step 5: Solve for x
    x = 1,475,620,785.70/48,132.20
  6. Step 6: Final answer
    x = 30,657.67

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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.