Home / 80,200.20-120,300.30-48,707.40

Finding the Fourth Proportional to 80,200.20, 120,300.30 and 48,707.40

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Solution

The fourth proportional to 80,200.20, 120,300.30 and 48,707.40 is: 73,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.20 : 120,300.30 = 48,707.40 : x
  2. Step 2: Convert to fraction form
    80,200.20/120,300.30 = 48,707.40/x
  3. Step 3: Cross multiply
    80,200.20x = 120,300.30 × 48,707.40
  4. Step 4: Simplify right side
    80,200.20x = 5,859,514,832.22
  5. Step 5: Solve for x
    x = 5,859,514,832.22/80,200.20
  6. Step 6: Final answer
    x = 73,061.10

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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.