Home / 68,110.80-102,166.20-49,302.60

Finding the Fourth Proportional to 68,110.80, 102,166.20 and 49,302.60

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Solution

The fourth proportional to 68,110.80, 102,166.20 and 49,302.60 is: 73,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110.80 : 102,166.20 = 49,302.60 : x
  2. Step 2: Convert to fraction form
    68,110.80/102,166.20 = 49,302.60/x
  3. Step 3: Cross multiply
    68,110.80x = 102,166.20 × 49,302.60
  4. Step 4: Simplify right side
    68,110.80x = 5,037,059,292.12
  5. Step 5: Solve for x
    x = 5,037,059,292.12/68,110.80
  6. Step 6: Final answer
    x = 73,953.90

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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.