Home / 75,926.80-113,890.20-53,765.20

Finding the Fourth Proportional to 75,926.80, 113,890.20 and 53,765.20

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Solution

The fourth proportional to 75,926.80, 113,890.20 and 53,765.20 is: 80,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,926.80 : 113,890.20 = 53,765.20 : x
  2. Step 2: Convert to fraction form
    75,926.80/113,890.20 = 53,765.20/x
  3. Step 3: Cross multiply
    75,926.80x = 113,890.20 × 53,765.20
  4. Step 4: Simplify right side
    75,926.80x = 6,123,329,381.04
  5. Step 5: Solve for x
    x = 6,123,329,381.04/75,926.80
  6. Step 6: Final answer
    x = 80,647.80

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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.