Home / 80,817.58-121,170.03-35,814.43

Finding the Fourth Proportional to 80,817.58, 121,170.03 and 35,814.43

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Solution

The fourth proportional to 80,817.58, 121,170.03 and 35,814.43 is: 53,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,817.58 : 121,170.03 = 35,814.43 : x
  2. Step 2: Convert to fraction form
    80,817.58/121,170.03 = 35,814.43/x
  3. Step 3: Cross multiply
    80,817.58x = 121,170.03 × 35,814.43
  4. Step 4: Simplify right side
    80,817.58x = 4,339,635,557.53
  5. Step 5: Solve for x
    x = 4,339,635,557.53/80,817.58
  6. Step 6: Final answer
    x = 53,696.68

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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.