Home / 40,781.79-61,165.40-11,195.73

Finding the Fourth Proportional to 40,781.79, 61,165.40 and 11,195.73

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Solution

The fourth proportional to 40,781.79, 61,165.40 and 11,195.73 is: 16,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.79 : 61,165.40 = 11,195.73 : x
  2. Step 2: Convert to fraction form
    40,781.79/61,165.40 = 11,195.73/x
  3. Step 3: Cross multiply
    40,781.79x = 61,165.40 × 11,195.73
  4. Step 4: Simplify right side
    40,781.79x = 684,791,247.76
  5. Step 5: Solve for x
    x = 684,791,247.76/40,781.79
  6. Step 6: Final answer
    x = 16,791.59

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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.