Home / 84,619.92-126,933.39-69,801.24

Finding the Fourth Proportional to 84,619.92, 126,933.39 and 69,801.24

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Solution

The fourth proportional to 84,619.92, 126,933.39 and 69,801.24 is: 104,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.92 : 126,933.39 = 69,801.24 : x
  2. Step 2: Convert to fraction form
    84,619.92/126,933.39 = 69,801.24/x
  3. Step 3: Cross multiply
    84,619.92x = 126,933.39 × 69,801.24
  4. Step 4: Simplify right side
    84,619.92x = 8,860,107,670.40
  5. Step 5: Solve for x
    x = 8,860,107,670.40/84,619.92
  6. Step 6: Final answer
    x = 104,704.75

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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.