Home / 68,019.50-102,039.82-34,721.55

Finding the Fourth Proportional to 68,019.50, 102,039.82 and 34,721.55

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Solution

The fourth proportional to 68,019.50, 102,039.82 and 34,721.55 is: 52,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.50 : 102,039.82 = 34,721.55 : x
  2. Step 2: Convert to fraction form
    68,019.50/102,039.82 = 34,721.55/x
  3. Step 3: Cross multiply
    68,019.50x = 102,039.82 × 34,721.55
  4. Step 4: Simplify right side
    68,019.50x = 3,542,980,625.32
  5. Step 5: Solve for x
    x = 3,542,980,625.32/68,019.50
  6. Step 6: Final answer
    x = 52,087.72

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1.5x scale

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.