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Finding the Fourth Proportional to 80,016.49, 120,024.78 and 20,852.01

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Solution

The fourth proportional to 80,016.49, 120,024.78 and 20,852.01 is: 31,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,016.49 : 120,024.78 = 20,852.01 : x
  2. Step 2: Convert to fraction form
    80,016.49/120,024.78 = 20,852.01/x
  3. Step 3: Cross multiply
    80,016.49x = 120,024.78 × 20,852.01
  4. Step 4: Simplify right side
    80,016.49x = 2,502,757,808.55
  5. Step 5: Solve for x
    x = 2,502,757,808.55/80,016.49
  6. Step 6: Final answer
    x = 31,278.03

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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.