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Finding the Fourth Proportional to 91,888.79, 137,768.38 and 35,682.08

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Solution

The fourth proportional to 91,888.79, 137,768.38 and 35,682.08 is: 53,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,888.79 : 137,768.38 = 35,682.08 : x
  2. Step 2: Convert to fraction form
    91,888.79/137,768.38 = 35,682.08/x
  3. Step 3: Cross multiply
    91,888.79x = 137,768.38 × 35,682.08
  4. Step 4: Simplify right side
    91,888.79x = 4,915,861,578.58
  5. Step 5: Solve for x
    x = 4,915,861,578.58/91,888.79
  6. Step 6: Final answer
    x = 53,497.95

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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.