Home / 84,876.79-117,086.05-57,654.28

Finding the Fourth Proportional to 84,876.79, 117,086.05 and 57,654.28

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Solution

The fourth proportional to 84,876.79, 117,086.05 and 57,654.28 is: 79,533.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,876.79 : 117,086.05 = 57,654.28 : x
  2. Step 2: Convert to fraction form
    84,876.79/117,086.05 = 57,654.28/x
  3. Step 3: Cross multiply
    84,876.79x = 117,086.05 × 57,654.28
  4. Step 4: Simplify right side
    84,876.79x = 6,750,511,037.09
  5. Step 5: Solve for x
    x = 6,750,511,037.09/84,876.79
  6. Step 6: Final answer
    x = 79,533.06

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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.