Home / 85,691.42-118,190.44-55,453.41

Finding the Fourth Proportional to 85,691.42, 118,190.44 and 55,453.41

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Solution

The fourth proportional to 85,691.42, 118,190.44 and 55,453.41 is: 76,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,691.42 : 118,190.44 = 55,453.41 : x
  2. Step 2: Convert to fraction form
    85,691.42/118,190.44 = 55,453.41/x
  3. Step 3: Cross multiply
    85,691.42x = 118,190.44 × 55,453.41
  4. Step 4: Simplify right side
    85,691.42x = 6,554,062,788.77
  5. Step 5: Solve for x
    x = 6,554,062,788.77/85,691.42
  6. Step 6: Final answer
    x = 76,484.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.