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Finding the Fourth Proportional to 91,330.75, 136,941.45 and 37,958.41

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Solution

The fourth proportional to 91,330.75, 136,941.45 and 37,958.41 is: 56,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,330.75 : 136,941.45 = 37,958.41 : x
  2. Step 2: Convert to fraction form
    91,330.75/136,941.45 = 37,958.41/x
  3. Step 3: Cross multiply
    91,330.75x = 136,941.45 × 37,958.41
  4. Step 4: Simplify right side
    91,330.75x = 5,198,079,705.09
  5. Step 5: Solve for x
    x = 5,198,079,705.09/91,330.75
  6. Step 6: Final answer
    x = 56,914.89

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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.