Home / 75,579.21-112,885.18-68,452.83

Finding the Fourth Proportional to 75,579.21, 112,885.18 and 68,452.83

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Solution

The fourth proportional to 75,579.21, 112,885.18 and 68,452.83 is: 102,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,579.21 : 112,885.18 = 68,452.83 : x
  2. Step 2: Convert to fraction form
    75,579.21/112,885.18 = 68,452.83/x
  3. Step 3: Cross multiply
    75,579.21x = 112,885.18 × 68,452.83
  4. Step 4: Simplify right side
    75,579.21x = 7,727,309,864.93
  5. Step 5: Solve for x
    x = 7,727,309,864.93/75,579.21
  6. Step 6: Final answer
    x = 102,241.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.