Home / 91,136.22-136,729.70-27,958.40

Finding the Fourth Proportional to 91,136.22, 136,729.70 and 27,958.40

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Solution

The fourth proportional to 91,136.22, 136,729.70 and 27,958.40 is: 41,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,136.22 : 136,729.70 = 27,958.40 : x
  2. Step 2: Convert to fraction form
    91,136.22/136,729.70 = 27,958.40/x
  3. Step 3: Cross multiply
    91,136.22x = 136,729.70 × 27,958.40
  4. Step 4: Simplify right side
    91,136.22x = 3,822,744,113.74
  5. Step 5: Solve for x
    x = 3,822,744,113.74/91,136.22
  6. Step 6: Final answer
    x = 41,945.39

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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.