Home / 67,109.58-100,681.38-31,563.95

Finding the Fourth Proportional to 67,109.58, 100,681.38 and 31,563.95

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Solution

The fourth proportional to 67,109.58, 100,681.38 and 31,563.95 is: 47,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,109.58 : 100,681.38 = 31,563.95 : x
  2. Step 2: Convert to fraction form
    67,109.58/100,681.38 = 31,563.95/x
  3. Step 3: Cross multiply
    67,109.58x = 100,681.38 × 31,563.95
  4. Step 4: Simplify right side
    67,109.58x = 3,177,901,540.84
  5. Step 5: Solve for x
    x = 3,177,901,540.84/67,109.58
  6. Step 6: Final answer
    x = 47,353.92

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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.