Home / 85,310.25-117,734.78-47,077.35

Finding the Fourth Proportional to 85,310.25, 117,734.78 and 47,077.35

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Solution

The fourth proportional to 85,310.25, 117,734.78 and 47,077.35 is: 64,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.25 : 117,734.78 = 47,077.35 : x
  2. Step 2: Convert to fraction form
    85,310.25/117,734.78 = 47,077.35/x
  3. Step 3: Cross multiply
    85,310.25x = 117,734.78 × 47,077.35
  4. Step 4: Simplify right side
    85,310.25x = 5,542,641,562.93
  5. Step 5: Solve for x
    x = 5,542,641,562.93/85,310.25
  6. Step 6: Final answer
    x = 64,970.41

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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.