Home / 80,623.20-120,934.80-52,629.60

Finding the Fourth Proportional to 80,623.20, 120,934.80 and 52,629.60

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Solution

The fourth proportional to 80,623.20, 120,934.80 and 52,629.60 is: 78,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,623.20 : 120,934.80 = 52,629.60 : x
  2. Step 2: Convert to fraction form
    80,623.20/120,934.80 = 52,629.60/x
  3. Step 3: Cross multiply
    80,623.20x = 120,934.80 × 52,629.60
  4. Step 4: Simplify right side
    80,623.20x = 6,364,750,150.08
  5. Step 5: Solve for x
    x = 6,364,750,150.08/80,623.20
  6. Step 6: Final answer
    x = 78,944.40

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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.