Home / 76,769.20-115,153.77-29,989.27

Finding the Fourth Proportional to 76,769.20, 115,153.77 and 29,989.27

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Solution

The fourth proportional to 76,769.20, 115,153.77 and 29,989.27 is: 44,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,769.20 : 115,153.77 = 29,989.27 : x
  2. Step 2: Convert to fraction form
    76,769.20/115,153.77 = 29,989.27/x
  3. Step 3: Cross multiply
    76,769.20x = 115,153.77 × 29,989.27
  4. Step 4: Simplify right side
    76,769.20x = 3,453,377,500.05
  5. Step 5: Solve for x
    x = 3,453,377,500.05/76,769.20
  6. Step 6: Final answer
    x = 44,983.89

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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.