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Finding the Fourth Proportional to 84,969.60, 117,240.48 and 49,146.56

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Solution

The fourth proportional to 84,969.60, 117,240.48 and 49,146.56 is: 67,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,969.60 : 117,240.48 = 49,146.56 : x
  2. Step 2: Convert to fraction form
    84,969.60/117,240.48 = 49,146.56/x
  3. Step 3: Cross multiply
    84,969.60x = 117,240.48 × 49,146.56
  4. Step 4: Simplify right side
    84,969.60x = 5,761,966,284.75
  5. Step 5: Solve for x
    x = 5,761,966,284.75/84,969.60
  6. Step 6: Final answer
    x = 67,812.09

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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.