Home / 65,827.82-90,845.66-40,335.60

Finding the Fourth Proportional to 65,827.82, 90,845.66 and 40,335.60

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Solution

The fourth proportional to 65,827.82, 90,845.66 and 40,335.60 is: 55,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,827.82 : 90,845.66 = 40,335.60 : x
  2. Step 2: Convert to fraction form
    65,827.82/90,845.66 = 40,335.60/x
  3. Step 3: Cross multiply
    65,827.82x = 90,845.66 × 40,335.60
  4. Step 4: Simplify right side
    65,827.82x = 3,664,314,645.01
  5. Step 5: Solve for x
    x = 3,664,314,645.01/65,827.82
  6. Step 6: Final answer
    x = 55,665.14

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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.