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Finding the Fourth Proportional to 91,344.42, 136,933.60 and 35,148.68

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Solution

The fourth proportional to 91,344.42, 136,933.60 and 35,148.68 is: 52,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,344.42 : 136,933.60 = 35,148.68 : x
  2. Step 2: Convert to fraction form
    91,344.42/136,933.60 = 35,148.68/x
  3. Step 3: Cross multiply
    91,344.42x = 136,933.60 × 35,148.68
  4. Step 4: Simplify right side
    91,344.42x = 4,813,035,287.65
  5. Step 5: Solve for x
    x = 4,813,035,287.65/91,344.42
  6. Step 6: Final answer
    x = 52,691.07

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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.