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Finding the Fourth Proportional to 85,481.97, 117,962.80 and 47,756.22

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Solution

The fourth proportional to 85,481.97, 117,962.80 and 47,756.22 is: 65,902.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,481.97 : 117,962.80 = 47,756.22 : x
  2. Step 2: Convert to fraction form
    85,481.97/117,962.80 = 47,756.22/x
  3. Step 3: Cross multiply
    85,481.97x = 117,962.80 × 47,756.22
  4. Step 4: Simplify right side
    85,481.97x = 5,633,457,428.62
  5. Step 5: Solve for x
    x = 5,633,457,428.62/85,481.97
  6. Step 6: Final answer
    x = 65,902.29

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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.