Home / 68,087.11-93,921.87-40,856.15

Finding the Fourth Proportional to 68,087.11, 93,921.87 and 40,856.15

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Solution

The fourth proportional to 68,087.11, 93,921.87 and 40,856.15 is: 56,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.11 : 93,921.87 = 40,856.15 : x
  2. Step 2: Convert to fraction form
    68,087.11/93,921.87 = 40,856.15/x
  3. Step 3: Cross multiply
    68,087.11x = 93,921.87 × 40,856.15
  4. Step 4: Simplify right side
    68,087.11x = 3,837,286,009.00
  5. Step 5: Solve for x
    x = 3,837,286,009.00/68,087.11
  6. Step 6: Final answer
    x = 56,358.48

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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.