Home / 68,507.10-94,539.77-40,212.79

Finding the Fourth Proportional to 68,507.10, 94,539.77 and 40,212.79

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Solution

The fourth proportional to 68,507.10, 94,539.77 and 40,212.79 is: 55,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.10 : 94,539.77 = 40,212.79 : x
  2. Step 2: Convert to fraction form
    68,507.10/94,539.77 = 40,212.79/x
  3. Step 3: Cross multiply
    68,507.10x = 94,539.77 × 40,212.79
  4. Step 4: Simplify right side
    68,507.10x = 3,801,707,598.42
  5. Step 5: Solve for x
    x = 3,801,707,598.42/68,507.10
  6. Step 6: Final answer
    x = 55,493.63

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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.