Home / 80,069.04-120,643.97-66,334.68

Finding the Fourth Proportional to 80,069.04, 120,643.97 and 66,334.68

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Solution

The fourth proportional to 80,069.04, 120,643.97 and 66,334.68 is: 99,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.04 : 120,643.97 = 66,334.68 : x
  2. Step 2: Convert to fraction form
    80,069.04/120,643.97 = 66,334.68/x
  3. Step 3: Cross multiply
    80,069.04x = 120,643.97 × 66,334.68
  4. Step 4: Simplify right side
    80,069.04x = 8,002,878,812.21
  5. Step 5: Solve for x
    x = 8,002,878,812.21/80,069.04
  6. Step 6: Final answer
    x = 99,949.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.