Home / 65,815.82-98,661.45-40,530.87

Finding the Fourth Proportional to 65,815.82, 98,661.45 and 40,530.87

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Solution

The fourth proportional to 65,815.82, 98,661.45 and 40,530.87 is: 60,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,815.82 : 98,661.45 = 40,530.87 : x
  2. Step 2: Convert to fraction form
    65,815.82/98,661.45 = 40,530.87/x
  3. Step 3: Cross multiply
    65,815.82x = 98,661.45 × 40,530.87
  4. Step 4: Simplify right side
    65,815.82x = 3,998,834,403.96
  5. Step 5: Solve for x
    x = 3,998,834,403.96/65,815.82
  6. Step 6: Final answer
    x = 60,757.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.