Home / 78,375.20-108,157.02-44,382.80

Finding the Fourth Proportional to 78,375.20, 108,157.02 and 44,382.80

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Solution

The fourth proportional to 78,375.20, 108,157.02 and 44,382.80 is: 61,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,375.20 : 108,157.02 = 44,382.80 : x
  2. Step 2: Convert to fraction form
    78,375.20/108,157.02 = 44,382.80/x
  3. Step 3: Cross multiply
    78,375.20x = 108,157.02 × 44,382.80
  4. Step 4: Simplify right side
    78,375.20x = 4,800,311,387.26
  5. Step 5: Solve for x
    x = 4,800,311,387.26/78,375.20
  6. Step 6: Final answer
    x = 61,247.84

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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.