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Finding the Fourth Proportional to 55,081.60, 82,596.60 and 20,016.64

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Solution

The fourth proportional to 55,081.60, 82,596.60 and 20,016.64 is: 30,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.60 : 82,596.60 = 20,016.64 : x
  2. Step 2: Convert to fraction form
    55,081.60/82,596.60 = 20,016.64/x
  3. Step 3: Cross multiply
    55,081.60x = 82,596.60 × 20,016.64
  4. Step 4: Simplify right side
    55,081.60x = 1,653,306,407.42
  5. Step 5: Solve for x
    x = 1,653,306,407.42/55,081.60
  6. Step 6: Final answer
    x = 30,015.58

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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.