Home / 84,942.58-117,048.08-65,705.52

Finding the Fourth Proportional to 84,942.58, 117,048.08 and 65,705.52

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Solution

The fourth proportional to 84,942.58, 117,048.08 and 65,705.52 is: 90,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,942.58 : 117,048.08 = 65,705.52 : x
  2. Step 2: Convert to fraction form
    84,942.58/117,048.08 = 65,705.52/x
  3. Step 3: Cross multiply
    84,942.58x = 117,048.08 × 65,705.52
  4. Step 4: Simplify right side
    84,942.58x = 7,690,704,961.40
  5. Step 5: Solve for x
    x = 7,690,704,961.40/84,942.58
  6. Step 6: Final answer
    x = 90,540.04

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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.