Home / 68,319.72-102,409.38-26,188.38

Finding the Fourth Proportional to 68,319.72, 102,409.38 and 26,188.38

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Solution

The fourth proportional to 68,319.72, 102,409.38 and 26,188.38 is: 39,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,319.72 : 102,409.38 = 26,188.38 : x
  2. Step 2: Convert to fraction form
    68,319.72/102,409.38 = 26,188.38/x
  3. Step 3: Cross multiply
    68,319.72x = 102,409.38 × 26,188.38
  4. Step 4: Simplify right side
    68,319.72x = 2,681,935,759.00
  5. Step 5: Solve for x
    x = 2,681,935,759.00/68,319.72
  6. Step 6: Final answer
    x = 39,255.66

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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.