Home / 75,507.18-113,245.65-71,760.30

Finding the Fourth Proportional to 75,507.18, 113,245.65 and 71,760.30

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Solution

The fourth proportional to 75,507.18, 113,245.65 and 71,760.30 is: 107,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,507.18 : 113,245.65 = 71,760.30 : x
  2. Step 2: Convert to fraction form
    75,507.18/113,245.65 = 71,760.30/x
  3. Step 3: Cross multiply
    75,507.18x = 113,245.65 × 71,760.30
  4. Step 4: Simplify right side
    75,507.18x = 8,126,541,817.70
  5. Step 5: Solve for x
    x = 8,126,541,817.70/75,507.18
  6. Step 6: Final answer
    x = 107,626.08

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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.