Home / 68,144.49-102,222.50-21,397.41

Finding the Fourth Proportional to 68,144.49, 102,222.50 and 21,397.41

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Solution

The fourth proportional to 68,144.49, 102,222.50 and 21,397.41 is: 32,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,144.49 : 102,222.50 = 21,397.41 : x
  2. Step 2: Convert to fraction form
    68,144.49/102,222.50 = 21,397.41/x
  3. Step 3: Cross multiply
    68,144.49x = 102,222.50 × 21,397.41
  4. Step 4: Simplify right side
    68,144.49x = 2,187,296,636.74
  5. Step 5: Solve for x
    x = 2,187,296,636.74/68,144.49
  6. Step 6: Final answer
    x = 32,097.92

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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.