Home / 75,537.80-113,306.70-70,872.20

Finding the Fourth Proportional to 75,537.80, 113,306.70 and 70,872.20

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Solution

The fourth proportional to 75,537.80, 113,306.70 and 70,872.20 is: 106,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,537.80 : 113,306.70 = 70,872.20 : x
  2. Step 2: Convert to fraction form
    75,537.80/113,306.70 = 70,872.20/x
  3. Step 3: Cross multiply
    75,537.80x = 113,306.70 × 70,872.20
  4. Step 4: Simplify right side
    75,537.80x = 8,030,295,103.74
  5. Step 5: Solve for x
    x = 8,030,295,103.74/75,537.80
  6. Step 6: Final answer
    x = 106,308.30

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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.