Home / 85,991.18-118,671.24-49,691.43

Finding the Fourth Proportional to 85,991.18, 118,671.24 and 49,691.43

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Solution

The fourth proportional to 85,991.18, 118,671.24 and 49,691.43 is: 68,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.18 : 118,671.24 = 49,691.43 : x
  2. Step 2: Convert to fraction form
    85,991.18/118,671.24 = 49,691.43/x
  3. Step 3: Cross multiply
    85,991.18x = 118,671.24 × 49,691.43
  4. Step 4: Simplify right side
    85,991.18x = 5,896,943,615.47
  5. Step 5: Solve for x
    x = 5,896,943,615.47/85,991.18
  6. Step 6: Final answer
    x = 68,576.15

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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.