Home / 80,995.66-111,776.21-50,778.14

Finding the Fourth Proportional to 80,995.66, 111,776.21 and 50,778.14

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Solution

The fourth proportional to 80,995.66, 111,776.21 and 50,778.14 is: 70,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,995.66 : 111,776.21 = 50,778.14 : x
  2. Step 2: Convert to fraction form
    80,995.66/111,776.21 = 50,778.14/x
  3. Step 3: Cross multiply
    80,995.66x = 111,776.21 × 50,778.14
  4. Step 4: Simplify right side
    80,995.66x = 5,675,788,446.44
  5. Step 5: Solve for x
    x = 5,675,788,446.44/80,995.66
  6. Step 6: Final answer
    x = 70,075.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.