Home / 43,129.05-64,692.99-11,107.94

Finding the Fourth Proportional to 43,129.05, 64,692.99 and 11,107.94

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Solution

The fourth proportional to 43,129.05, 64,692.99 and 11,107.94 is: 16,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.05 : 64,692.99 = 11,107.94 : x
  2. Step 2: Convert to fraction form
    43,129.05/64,692.99 = 11,107.94/x
  3. Step 3: Cross multiply
    43,129.05x = 64,692.99 × 11,107.94
  4. Step 4: Simplify right side
    43,129.05x = 718,605,851.34
  5. Step 5: Solve for x
    x = 718,605,851.34/43,129.05
  6. Step 6: Final answer
    x = 16,661.76

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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.