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Finding the Fourth Proportional to 88,245.60, 121,729.60 and 54,230.44

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Solution

The fourth proportional to 88,245.60, 121,729.60 and 54,230.44 is: 74,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,245.60 : 121,729.60 = 54,230.44 : x
  2. Step 2: Convert to fraction form
    88,245.60/121,729.60 = 54,230.44/x
  3. Step 3: Cross multiply
    88,245.60x = 121,729.60 × 54,230.44
  4. Step 4: Simplify right side
    88,245.60x = 6,601,449,769.02
  5. Step 5: Solve for x
    x = 6,601,449,769.02/88,245.60
  6. Step 6: Final answer
    x = 74,807.69

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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.