Home / 68,402.15-94,398.62-40,109.99

Finding the Fourth Proportional to 68,402.15, 94,398.62 and 40,109.99

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Solution

The fourth proportional to 68,402.15, 94,398.62 and 40,109.99 is: 55,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,402.15 : 94,398.62 = 40,109.99 : x
  2. Step 2: Convert to fraction form
    68,402.15/94,398.62 = 40,109.99/x
  3. Step 3: Cross multiply
    68,402.15x = 94,398.62 × 40,109.99
  4. Step 4: Simplify right side
    68,402.15x = 3,786,327,704.21
  5. Step 5: Solve for x
    x = 3,786,327,704.21/68,402.15
  6. Step 6: Final answer
    x = 55,353.93

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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.