Home / 68,905-95,074.02-40,600.36

Finding the Fourth Proportional to 68,905, 95,074.02 and 40,600.36

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Solution

The fourth proportional to 68,905, 95,074.02 and 40,600.36 is: 56,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905 : 95,074.02 = 40,600.36 : x
  2. Step 2: Convert to fraction form
    68,905/95,074.02 = 40,600.36/x
  3. Step 3: Cross multiply
    68,905x = 95,074.02 × 40,600.36
  4. Step 4: Simplify right side
    68,905x = 3,860,039,438.65
  5. Step 5: Solve for x
    x = 3,860,039,438.65/68,905
  6. Step 6: Final answer
    x = 56,019.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.