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Finding the Fourth Proportional to 80,794.60, 121,197.98 and 21,628.96

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Solution

The fourth proportional to 80,794.60, 121,197.98 and 21,628.96 is: 32,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,794.60 : 121,197.98 = 21,628.96 : x
  2. Step 2: Convert to fraction form
    80,794.60/121,197.98 = 21,628.96/x
  3. Step 3: Cross multiply
    80,794.60x = 121,197.98 × 21,628.96
  4. Step 4: Simplify right side
    80,794.60x = 2,621,386,261.50
  5. Step 5: Solve for x
    x = 2,621,386,261.50/80,794.60
  6. Step 6: Final answer
    x = 32,445.07

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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.