Home / 68,105.61-93,983.09-37,890.99

Finding the Fourth Proportional to 68,105.61, 93,983.09 and 37,890.99

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Solution

The fourth proportional to 68,105.61, 93,983.09 and 37,890.99 is: 52,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,105.61 : 93,983.09 = 37,890.99 : x
  2. Step 2: Convert to fraction form
    68,105.61/93,983.09 = 37,890.99/x
  3. Step 3: Cross multiply
    68,105.61x = 93,983.09 × 37,890.99
  4. Step 4: Simplify right side
    68,105.61x = 3,561,112,133.90
  5. Step 5: Solve for x
    x = 3,561,112,133.90/68,105.61
  6. Step 6: Final answer
    x = 52,288.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.