Home / 63,781.29-95,665.46-21,087.81

Finding the Fourth Proportional to 63,781.29, 95,665.46 and 21,087.81

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Solution

The fourth proportional to 63,781.29, 95,665.46 and 21,087.81 is: 31,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.29 : 95,665.46 = 21,087.81 : x
  2. Step 2: Convert to fraction form
    63,781.29/95,665.46 = 21,087.81/x
  3. Step 3: Cross multiply
    63,781.29x = 95,665.46 × 21,087.81
  4. Step 4: Simplify right side
    63,781.29x = 2,017,374,938.60
  5. Step 5: Solve for x
    x = 2,017,374,938.60/63,781.29
  6. Step 6: Final answer
    x = 31,629.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.