Home / 80,075.42-120,019.29-32,660.91

Finding the Fourth Proportional to 80,075.42, 120,019.29 and 32,660.91

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Solution

The fourth proportional to 80,075.42, 120,019.29 and 32,660.91 is: 48,953.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,075.42 : 120,019.29 = 32,660.91 : x
  2. Step 2: Convert to fraction form
    80,075.42/120,019.29 = 32,660.91/x
  3. Step 3: Cross multiply
    80,075.42x = 120,019.29 × 32,660.91
  4. Step 4: Simplify right side
    80,075.42x = 3,919,939,228.95
  5. Step 5: Solve for x
    x = 3,919,939,228.95/80,075.42
  6. Step 6: Final answer
    x = 48,953.09

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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.