Home / 91,669.14-137,463.62-54,239.85

Finding the Fourth Proportional to 91,669.14, 137,463.62 and 54,239.85

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Solution

The fourth proportional to 91,669.14, 137,463.62 and 54,239.85 is: 81,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,669.14 : 137,463.62 = 54,239.85 : x
  2. Step 2: Convert to fraction form
    91,669.14/137,463.62 = 54,239.85/x
  3. Step 3: Cross multiply
    91,669.14x = 137,463.62 × 54,239.85
  4. Step 4: Simplify right side
    91,669.14x = 7,456,005,858.06
  5. Step 5: Solve for x
    x = 7,456,005,858.06/91,669.14
  6. Step 6: Final answer
    x = 81,336.05

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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.