Home / 68,737.84-103,106.68-18,818.35

Finding the Fourth Proportional to 68,737.84, 103,106.68 and 18,818.35

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Solution

The fourth proportional to 68,737.84, 103,106.68 and 18,818.35 is: 28,227.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,737.84 : 103,106.68 = 18,818.35 : x
  2. Step 2: Convert to fraction form
    68,737.84/103,106.68 = 18,818.35/x
  3. Step 3: Cross multiply
    68,737.84x = 103,106.68 × 18,818.35
  4. Step 4: Simplify right side
    68,737.84x = 1,940,297,591.58
  5. Step 5: Solve for x
    x = 1,940,297,591.58/68,737.84
  6. Step 6: Final answer
    x = 28,227.50

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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.