Home / 75,201.11-112,815.89-30,225.96

Finding the Fourth Proportional to 75,201.11, 112,815.89 and 30,225.96

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Solution

The fourth proportional to 75,201.11, 112,815.89 and 30,225.96 is: 45,344.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,201.11 : 112,815.89 = 30,225.96 : x
  2. Step 2: Convert to fraction form
    75,201.11/112,815.89 = 30,225.96/x
  3. Step 3: Cross multiply
    75,201.11x = 112,815.89 × 30,225.96
  4. Step 4: Simplify right side
    75,201.11x = 3,409,968,540.72
  5. Step 5: Solve for x
    x = 3,409,968,540.72/75,201.11
  6. Step 6: Final answer
    x = 45,344.66

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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.