Home / 55,380.30-76,423.68-30,229.80

Finding the Fourth Proportional to 55,380.30, 76,423.68 and 30,229.80

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Solution

The fourth proportional to 55,380.30, 76,423.68 and 30,229.80 is: 41,716.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,380.30 : 76,423.68 = 30,229.80 : x
  2. Step 2: Convert to fraction form
    55,380.30/76,423.68 = 30,229.80/x
  3. Step 3: Cross multiply
    55,380.30x = 76,423.68 × 30,229.80
  4. Step 4: Simplify right side
    55,380.30x = 2,310,272,561.66
  5. Step 5: Solve for x
    x = 2,310,272,561.66/55,380.30
  6. Step 6: Final answer
    x = 41,716.50

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1.5x scale

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.