Home / 80,135.84-120,210.24-27,545.36

Finding the Fourth Proportional to 80,135.84, 120,210.24 and 27,545.36

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Solution

The fourth proportional to 80,135.84, 120,210.24 and 27,545.36 is: 41,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,135.84 : 120,210.24 = 27,545.36 : x
  2. Step 2: Convert to fraction form
    80,135.84/120,210.24 = 27,545.36/x
  3. Step 3: Cross multiply
    80,135.84x = 120,210.24 × 27,545.36
  4. Step 4: Simplify right side
    80,135.84x = 3,311,234,336.49
  5. Step 5: Solve for x
    x = 3,311,234,336.49/80,135.84
  6. Step 6: Final answer
    x = 41,320.27

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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.