Home / 75,003.21-103,515.30-43,171.83

Finding the Fourth Proportional to 75,003.21, 103,515.30 and 43,171.83

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Solution

The fourth proportional to 75,003.21, 103,515.30 and 43,171.83 is: 59,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,003.21 : 103,515.30 = 43,171.83 : x
  2. Step 2: Convert to fraction form
    75,003.21/103,515.30 = 43,171.83/x
  3. Step 3: Cross multiply
    75,003.21x = 103,515.30 × 43,171.83
  4. Step 4: Simplify right side
    75,003.21x = 4,468,944,934.00
  5. Step 5: Solve for x
    x = 4,468,944,934.00/75,003.21
  6. Step 6: Final answer
    x = 59,583.38

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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.