Home / 75,120.62-103,671.42-43,291.55

Finding the Fourth Proportional to 75,120.62, 103,671.42 and 43,291.55

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Solution

The fourth proportional to 75,120.62, 103,671.42 and 43,291.55 is: 59,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,120.62 : 103,671.42 = 43,291.55 : x
  2. Step 2: Convert to fraction form
    75,120.62/103,671.42 = 43,291.55/x
  3. Step 3: Cross multiply
    75,120.62x = 103,671.42 × 43,291.55
  4. Step 4: Simplify right side
    75,120.62x = 4,488,096,462.50
  5. Step 5: Solve for x
    x = 4,488,096,462.50/75,120.62
  6. Step 6: Final answer
    x = 59,745.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.