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Finding the Fourth Proportional to 91,935.36, 137,898 and 25,375.92

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Solution

The fourth proportional to 91,935.36, 137,898 and 25,375.92 is: 38,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.36 : 137,898 = 25,375.92 : x
  2. Step 2: Convert to fraction form
    91,935.36/137,898 = 25,375.92/x
  3. Step 3: Cross multiply
    91,935.36x = 137,898 × 25,375.92
  4. Step 4: Simplify right side
    91,935.36x = 3,499,288,616.16
  5. Step 5: Solve for x
    x = 3,499,288,616.16/91,935.36
  6. Step 6: Final answer
    x = 38,062.49

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1.5x scale

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.