Home / 83,764.50-115,555.64-49,774.02

Finding the Fourth Proportional to 83,764.50, 115,555.64 and 49,774.02

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Solution

The fourth proportional to 83,764.50, 115,555.64 and 49,774.02 is: 68,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,764.50 : 115,555.64 = 49,774.02 : x
  2. Step 2: Convert to fraction form
    83,764.50/115,555.64 = 49,774.02/x
  3. Step 3: Cross multiply
    83,764.50x = 115,555.64 × 49,774.02
  4. Step 4: Simplify right side
    83,764.50x = 5,751,668,736.47
  5. Step 5: Solve for x
    x = 5,751,668,736.47/83,764.50
  6. Step 6: Final answer
    x = 68,664.75

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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.