Home / 85,640.20-118,167.60-49,817.14

Finding the Fourth Proportional to 85,640.20, 118,167.60 and 49,817.14

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Solution

The fourth proportional to 85,640.20, 118,167.60 and 49,817.14 is: 68,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,640.20 : 118,167.60 = 49,817.14 : x
  2. Step 2: Convert to fraction form
    85,640.20/118,167.60 = 49,817.14/x
  3. Step 3: Cross multiply
    85,640.20x = 118,167.60 × 49,817.14
  4. Step 4: Simplify right side
    85,640.20x = 5,886,771,872.66
  5. Step 5: Solve for x
    x = 5,886,771,872.66/85,640.20
  6. Step 6: Final answer
    x = 68,738.42

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1.5x scale

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.