Home / 80,885.94-111,621.09-45,075.18

Finding the Fourth Proportional to 80,885.94, 111,621.09 and 45,075.18

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Solution

The fourth proportional to 80,885.94, 111,621.09 and 45,075.18 is: 62,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,885.94 : 111,621.09 = 45,075.18 : x
  2. Step 2: Convert to fraction form
    80,885.94/111,621.09 = 45,075.18/x
  3. Step 3: Cross multiply
    80,885.94x = 111,621.09 × 45,075.18
  4. Step 4: Simplify right side
    80,885.94x = 5,031,340,723.55
  5. Step 5: Solve for x
    x = 5,031,340,723.55/80,885.94
  6. Step 6: Final answer
    x = 62,202.91

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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.