Home / 215,683.09-323,524.64-65,923.81

Finding the Fourth Proportional to 215,683.09, 323,524.64 and 65,923.81

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Solution

The fourth proportional to 215,683.09, 323,524.64 and 65,923.81 is: 98,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683.09 : 323,524.64 = 65,923.81 : x
  2. Step 2: Convert to fraction form
    215,683.09/323,524.64 = 65,923.81/x
  3. Step 3: Cross multiply
    215,683.09x = 323,524.64 × 65,923.81
  4. Step 4: Simplify right side
    215,683.09x = 21,327,976,897.68
  5. Step 5: Solve for x
    x = 21,327,976,897.68/215,683.09
  6. Step 6: Final answer
    x = 98,885.72

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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.