Home / 80,739.01-121,110.83-21,574.76

Finding the Fourth Proportional to 80,739.01, 121,110.83 and 21,574.76

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Solution

The fourth proportional to 80,739.01, 121,110.83 and 21,574.76 is: 32,362.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,739.01 : 121,110.83 = 21,574.76 : x
  2. Step 2: Convert to fraction form
    80,739.01/121,110.83 = 21,574.76/x
  3. Step 3: Cross multiply
    80,739.01x = 121,110.83 × 21,574.76
  4. Step 4: Simplify right side
    80,739.01x = 2,612,936,982.78
  5. Step 5: Solve for x
    x = 2,612,936,982.78/80,739.01
  6. Step 6: Final answer
    x = 32,362.76

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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.