Home / 68,089.11-93,956.37-39,403.07

Finding the Fourth Proportional to 68,089.11, 93,956.37 and 39,403.07

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Solution

The fourth proportional to 68,089.11, 93,956.37 and 39,403.07 is: 54,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,089.11 : 93,956.37 = 39,403.07 : x
  2. Step 2: Convert to fraction form
    68,089.11/93,956.37 = 39,403.07/x
  3. Step 3: Cross multiply
    68,089.11x = 93,956.37 × 39,403.07
  4. Step 4: Simplify right side
    68,089.11x = 3,702,169,757.45
  5. Step 5: Solve for x
    x = 3,702,169,757.45/68,089.11
  6. Step 6: Final answer
    x = 54,372.42

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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.