Home / 78,974.85-108,950.25-47,125.24

Finding the Fourth Proportional to 78,974.85, 108,950.25 and 47,125.24

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Solution

The fourth proportional to 78,974.85, 108,950.25 and 47,125.24 is: 65,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,974.85 : 108,950.25 = 47,125.24 : x
  2. Step 2: Convert to fraction form
    78,974.85/108,950.25 = 47,125.24/x
  3. Step 3: Cross multiply
    78,974.85x = 108,950.25 × 47,125.24
  4. Step 4: Simplify right side
    78,974.85x = 5,134,306,679.31
  5. Step 5: Solve for x
    x = 5,134,306,679.31/78,974.85
  6. Step 6: Final answer
    x = 65,011.92

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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.