Home / 68,337.09-102,517.74-20,951.10

Finding the Fourth Proportional to 68,337.09, 102,517.74 and 20,951.10

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Solution

The fourth proportional to 68,337.09, 102,517.74 and 20,951.10 is: 31,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.09 : 102,517.74 = 20,951.10 : x
  2. Step 2: Convert to fraction form
    68,337.09/102,517.74 = 20,951.10/x
  3. Step 3: Cross multiply
    68,337.09x = 102,517.74 × 20,951.10
  4. Step 4: Simplify right side
    68,337.09x = 2,147,859,422.51
  5. Step 5: Solve for x
    x = 2,147,859,422.51/68,337.09
  6. Step 6: Final answer
    x = 31,430.36

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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.