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Finding the Fourth Proportional to 80,331.70, 120,510.93 and 27,727.06

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Solution

The fourth proportional to 80,331.70, 120,510.93 and 27,727.06 is: 41,595.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,331.70 : 120,510.93 = 27,727.06 : x
  2. Step 2: Convert to fraction form
    80,331.70/120,510.93 = 27,727.06/x
  3. Step 3: Cross multiply
    80,331.70x = 120,510.93 × 27,727.06
  4. Step 4: Simplify right side
    80,331.70x = 3,341,413,786.77
  5. Step 5: Solve for x
    x = 3,341,413,786.77/80,331.70
  6. Step 6: Final answer
    x = 41,595.21

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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.