Home / 76,279.85-114,266.55-42,949.97

Finding the Fourth Proportional to 76,279.85, 114,266.55 and 42,949.97

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Solution

The fourth proportional to 76,279.85, 114,266.55 and 42,949.97 is: 64,338.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,279.85 : 114,266.55 = 42,949.97 : x
  2. Step 2: Convert to fraction form
    76,279.85/114,266.55 = 42,949.97/x
  3. Step 3: Cross multiply
    76,279.85x = 114,266.55 × 42,949.97
  4. Step 4: Simplify right side
    76,279.85x = 4,907,744,894.50
  5. Step 5: Solve for x
    x = 4,907,744,894.50/76,279.85
  6. Step 6: Final answer
    x = 64,338.68

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1.5x scale

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.