Home / 67,721.96-93,481.38-40,865.60

Finding the Fourth Proportional to 67,721.96, 93,481.38 and 40,865.60

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Solution

The fourth proportional to 67,721.96, 93,481.38 and 40,865.60 is: 56,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,721.96 : 93,481.38 = 40,865.60 : x
  2. Step 2: Convert to fraction form
    67,721.96/93,481.38 = 40,865.60/x
  3. Step 3: Cross multiply
    67,721.96x = 93,481.38 × 40,865.60
  4. Step 4: Simplify right side
    67,721.96x = 3,820,172,682.53
  5. Step 5: Solve for x
    x = 3,820,172,682.53/67,721.96
  6. Step 6: Final answer
    x = 56,409.66

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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.