Home / 68,651.61-94,734.11-39,971.50

Finding the Fourth Proportional to 68,651.61, 94,734.11 and 39,971.50

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Solution

The fourth proportional to 68,651.61, 94,734.11 and 39,971.50 is: 55,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.61 : 94,734.11 = 39,971.50 : x
  2. Step 2: Convert to fraction form
    68,651.61/94,734.11 = 39,971.50/x
  3. Step 3: Cross multiply
    68,651.61x = 94,734.11 × 39,971.50
  4. Step 4: Simplify right side
    68,651.61x = 3,786,664,004.19
  5. Step 5: Solve for x
    x = 3,786,664,004.19/68,651.61
  6. Step 6: Final answer
    x = 55,157.69

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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.