Home / 80,713.04-120,810.72-43,179.20

Finding the Fourth Proportional to 80,713.04, 120,810.72 and 43,179.20

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Solution

The fourth proportional to 80,713.04, 120,810.72 and 43,179.20 is: 64,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,713.04 : 120,810.72 = 43,179.20 : x
  2. Step 2: Convert to fraction form
    80,713.04/120,810.72 = 43,179.20/x
  3. Step 3: Cross multiply
    80,713.04x = 120,810.72 × 43,179.20
  4. Step 4: Simplify right side
    80,713.04x = 5,216,510,241.02
  5. Step 5: Solve for x
    x = 5,216,510,241.02/80,713.04
  6. Step 6: Final answer
    x = 64,630.33

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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.