Home / 40,790.12-61,185.85-11,207.77

Finding the Fourth Proportional to 40,790.12, 61,185.85 and 11,207.77

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Solution

The fourth proportional to 40,790.12, 61,185.85 and 11,207.77 is: 16,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,790.12 : 61,185.85 = 11,207.77 : x
  2. Step 2: Convert to fraction form
    40,790.12/61,185.85 = 11,207.77/x
  3. Step 3: Cross multiply
    40,790.12x = 61,185.85 × 11,207.77
  4. Step 4: Simplify right side
    40,790.12x = 685,756,753.07
  5. Step 5: Solve for x
    x = 685,756,753.07/40,790.12
  6. Step 6: Final answer
    x = 16,811.84

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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.