Home / 75,013.20-112,433.40-30,610.80

Finding the Fourth Proportional to 75,013.20, 112,433.40 and 30,610.80

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Solution

The fourth proportional to 75,013.20, 112,433.40 and 30,610.80 is: 45,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,013.20 : 112,433.40 = 30,610.80 : x
  2. Step 2: Convert to fraction form
    75,013.20/112,433.40 = 30,610.80/x
  3. Step 3: Cross multiply
    75,013.20x = 112,433.40 × 30,610.80
  4. Step 4: Simplify right side
    75,013.20x = 3,441,676,320.72
  5. Step 5: Solve for x
    x = 3,441,676,320.72/75,013.20
  6. Step 6: Final answer
    x = 45,880.94

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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.