Home / 68,205.75-102,274.35-39,751.86

Finding the Fourth Proportional to 68,205.75, 102,274.35 and 39,751.86

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Solution

The fourth proportional to 68,205.75, 102,274.35 and 39,751.86 is: 59,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,205.75 : 102,274.35 = 39,751.86 : x
  2. Step 2: Convert to fraction form
    68,205.75/102,274.35 = 39,751.86/x
  3. Step 3: Cross multiply
    68,205.75x = 102,274.35 × 39,751.86
  4. Step 4: Simplify right side
    68,205.75x = 4,065,595,642.79
  5. Step 5: Solve for x
    x = 4,065,595,642.79/68,205.75
  6. Step 6: Final answer
    x = 59,607.81

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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.