Home / 40,791.12-61,187.35-11,208.77

Finding the Fourth Proportional to 40,791.12, 61,187.35 and 11,208.77

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Solution

The fourth proportional to 40,791.12, 61,187.35 and 11,208.77 is: 16,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.12 : 61,187.35 = 11,208.77 : x
  2. Step 2: Convert to fraction form
    40,791.12/61,187.35 = 11,208.77/x
  3. Step 3: Cross multiply
    40,791.12x = 61,187.35 × 11,208.77
  4. Step 4: Simplify right side
    40,791.12x = 685,834,933.06
  5. Step 5: Solve for x
    x = 685,834,933.06/40,791.12
  6. Step 6: Final answer
    x = 16,813.34

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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.