Home / 80,019.42-120,029.16-27,429.36

Finding the Fourth Proportional to 80,019.42, 120,029.16 and 27,429.36

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Solution

The fourth proportional to 80,019.42, 120,029.16 and 27,429.36 is: 41,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,019.42 : 120,029.16 = 27,429.36 : x
  2. Step 2: Convert to fraction form
    80,019.42/120,029.16 = 27,429.36/x
  3. Step 3: Cross multiply
    80,019.42x = 120,029.16 × 27,429.36
  4. Step 4: Simplify right side
    80,019.42x = 3,292,323,040.14
  5. Step 5: Solve for x
    x = 3,292,323,040.14/80,019.42
  6. Step 6: Final answer
    x = 41,144.05

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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.