Home / 76,358.07-114,420.20-31,960.65

Finding the Fourth Proportional to 76,358.07, 114,420.20 and 31,960.65

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Solution

The fourth proportional to 76,358.07, 114,420.20 and 31,960.65 is: 47,892.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,358.07 : 114,420.20 = 31,960.65 : x
  2. Step 2: Convert to fraction form
    76,358.07/114,420.20 = 31,960.65/x
  3. Step 3: Cross multiply
    76,358.07x = 114,420.20 × 31,960.65
  4. Step 4: Simplify right side
    76,358.07x = 3,656,943,233.23
  5. Step 5: Solve for x
    x = 3,656,943,233.23/76,358.07
  6. Step 6: Final answer
    x = 47,892.04

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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.