Home / 91,839.80-137,759.70-29,516.60

Finding the Fourth Proportional to 91,839.80, 137,759.70 and 29,516.60

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Solution

The fourth proportional to 91,839.80, 137,759.70 and 29,516.60 is: 44,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,839.80 : 137,759.70 = 29,516.60 : x
  2. Step 2: Convert to fraction form
    91,839.80/137,759.70 = 29,516.60/x
  3. Step 3: Cross multiply
    91,839.80x = 137,759.70 × 29,516.60
  4. Step 4: Simplify right side
    91,839.80x = 4,066,197,961.02
  5. Step 5: Solve for x
    x = 4,066,197,961.02/91,839.80
  6. Step 6: Final answer
    x = 44,274.90

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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.