Home / 80,776.03-121,162.32-21,611.70

Finding the Fourth Proportional to 80,776.03, 121,162.32 and 21,611.70

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Solution

The fourth proportional to 80,776.03, 121,162.32 and 21,611.70 is: 32,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,776.03 : 121,162.32 = 21,611.70 : x
  2. Step 2: Convert to fraction form
    80,776.03/121,162.32 = 21,611.70/x
  3. Step 3: Cross multiply
    80,776.03x = 121,162.32 × 21,611.70
  4. Step 4: Simplify right side
    80,776.03x = 2,618,524,119.61
  5. Step 5: Solve for x
    x = 2,618,524,119.61/80,776.03
  6. Step 6: Final answer
    x = 32,417.09

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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.