Home / 76,375.80-114,428.14-31,904.68

Finding the Fourth Proportional to 76,375.80, 114,428.14 and 31,904.68

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Solution

The fourth proportional to 76,375.80, 114,428.14 and 31,904.68 is: 47,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,375.80 : 114,428.14 = 31,904.68 : x
  2. Step 2: Convert to fraction form
    76,375.80/114,428.14 = 31,904.68/x
  3. Step 3: Cross multiply
    76,375.80x = 114,428.14 × 31,904.68
  4. Step 4: Simplify right side
    76,375.80x = 3,650,793,189.70
  5. Step 5: Solve for x
    x = 3,650,793,189.70/76,375.80
  6. Step 6: Final answer
    x = 47,800.39

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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.