Home / 68,606.16-102,839.40-31,192.80

Finding the Fourth Proportional to 68,606.16, 102,839.40 and 31,192.80

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Solution

The fourth proportional to 68,606.16, 102,839.40 and 31,192.80 is: 46,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,606.16 : 102,839.40 = 31,192.80 : x
  2. Step 2: Convert to fraction form
    68,606.16/102,839.40 = 31,192.80/x
  3. Step 3: Cross multiply
    68,606.16x = 102,839.40 × 31,192.80
  4. Step 4: Simplify right side
    68,606.16x = 3,207,848,836.32
  5. Step 5: Solve for x
    x = 3,207,848,836.32/68,606.16
  6. Step 6: Final answer
    x = 46,757.45

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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.