Home / 80,040.16-120,031.44-27,435.52

Finding the Fourth Proportional to 80,040.16, 120,031.44 and 27,435.52

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Solution

The fourth proportional to 80,040.16, 120,031.44 and 27,435.52 is: 41,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,040.16 : 120,031.44 = 27,435.52 : x
  2. Step 2: Convert to fraction form
    80,040.16/120,031.44 = 27,435.52/x
  3. Step 3: Cross multiply
    80,040.16x = 120,031.44 × 27,435.52
  4. Step 4: Simplify right side
    80,040.16x = 3,293,124,972.75
  5. Step 5: Solve for x
    x = 3,293,124,972.75/80,040.16
  6. Step 6: Final answer
    x = 41,143.41

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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.