Home / 43,121.69-64,692.91-18,168.87

Finding the Fourth Proportional to 43,121.69, 64,692.91 and 18,168.87

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Solution

The fourth proportional to 43,121.69, 64,692.91 and 18,168.87 is: 27,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,121.69 : 64,692.91 = 18,168.87 : x
  2. Step 2: Convert to fraction form
    43,121.69/64,692.91 = 18,168.87/x
  3. Step 3: Cross multiply
    43,121.69x = 64,692.91 × 18,168.87
  4. Step 4: Simplify right side
    43,121.69x = 1,175,397,337.02
  5. Step 5: Solve for x
    x = 1,175,397,337.02/43,121.69
  6. Step 6: Final answer
    x = 27,257.68

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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.