Home / 81,227.44-121,841.16-53,518.96

Finding the Fourth Proportional to 81,227.44, 121,841.16 and 53,518.96

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Solution

The fourth proportional to 81,227.44, 121,841.16 and 53,518.96 is: 80,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,227.44 : 121,841.16 = 53,518.96 : x
  2. Step 2: Convert to fraction form
    81,227.44/121,841.16 = 53,518.96/x
  3. Step 3: Cross multiply
    81,227.44x = 121,841.16 × 53,518.96
  4. Step 4: Simplify right side
    81,227.44x = 6,520,812,168.39
  5. Step 5: Solve for x
    x = 6,520,812,168.39/81,227.44
  6. Step 6: Final answer
    x = 80,278.44

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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.