Home / 85,854.25-118,469.19-48,127.69

Finding the Fourth Proportional to 85,854.25, 118,469.19 and 48,127.69

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Solution

The fourth proportional to 85,854.25, 118,469.19 and 48,127.69 is: 66,410.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,854.25 : 118,469.19 = 48,127.69 : x
  2. Step 2: Convert to fraction form
    85,854.25/118,469.19 = 48,127.69/x
  3. Step 3: Cross multiply
    85,854.25x = 118,469.19 × 48,127.69
  4. Step 4: Simplify right side
    85,854.25x = 5,701,648,450.87
  5. Step 5: Solve for x
    x = 5,701,648,450.87/85,854.25
  6. Step 6: Final answer
    x = 66,410.79

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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.