Home / 67,051.20-100,641.60-33,808.80

Finding the Fourth Proportional to 67,051.20, 100,641.60 and 33,808.80

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Solution

The fourth proportional to 67,051.20, 100,641.60 and 33,808.80 is: 50,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,051.20 : 100,641.60 = 33,808.80 : x
  2. Step 2: Convert to fraction form
    67,051.20/100,641.60 = 33,808.80/x
  3. Step 3: Cross multiply
    67,051.20x = 100,641.60 × 33,808.80
  4. Step 4: Simplify right side
    67,051.20x = 3,402,571,726.08
  5. Step 5: Solve for x
    x = 3,402,571,726.08/67,051.20
  6. Step 6: Final answer
    x = 50,745.87

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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.