Home / 80,678.04-120,758.22-43,144.26

Finding the Fourth Proportional to 80,678.04, 120,758.22 and 43,144.26

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Solution

The fourth proportional to 80,678.04, 120,758.22 and 43,144.26 is: 64,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678.04 : 120,758.22 = 43,144.26 : x
  2. Step 2: Convert to fraction form
    80,678.04/120,758.22 = 43,144.26/x
  3. Step 3: Cross multiply
    80,678.04x = 120,758.22 × 43,144.26
  4. Step 4: Simplify right side
    80,678.04x = 5,210,024,040.82
  5. Step 5: Solve for x
    x = 5,210,024,040.82/80,678.04
  6. Step 6: Final answer
    x = 64,577.97

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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.