Home / 75,851.24-113,789.15-28,470.03

Finding the Fourth Proportional to 75,851.24, 113,789.15 and 28,470.03

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Solution

The fourth proportional to 75,851.24, 113,789.15 and 28,470.03 is: 42,709.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,851.24 : 113,789.15 = 28,470.03 : x
  2. Step 2: Convert to fraction form
    75,851.24/113,789.15 = 28,470.03/x
  3. Step 3: Cross multiply
    75,851.24x = 113,789.15 × 28,470.03
  4. Step 4: Simplify right side
    75,851.24x = 3,239,580,852.09
  5. Step 5: Solve for x
    x = 3,239,580,852.09/75,851.24
  6. Step 6: Final answer
    x = 42,709.67

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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.