Home / 65,201.25-89,964.66-39,690.48

Finding the Fourth Proportional to 65,201.25, 89,964.66 and 39,690.48

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Solution

The fourth proportional to 65,201.25, 89,964.66 and 39,690.48 is: 54,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,201.25 : 89,964.66 = 39,690.48 : x
  2. Step 2: Convert to fraction form
    65,201.25/89,964.66 = 39,690.48/x
  3. Step 3: Cross multiply
    65,201.25x = 89,964.66 × 39,690.48
  4. Step 4: Simplify right side
    65,201.25x = 3,570,740,538.44
  5. Step 5: Solve for x
    x = 3,570,740,538.44/65,201.25
  6. Step 6: Final answer
    x = 54,764.91

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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.