Home / 68,707.20-94,824.72-40,415.52

Finding the Fourth Proportional to 68,707.20, 94,824.72 and 40,415.52

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Solution

The fourth proportional to 68,707.20, 94,824.72 and 40,415.52 is: 55,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,707.20 : 94,824.72 = 40,415.52 : x
  2. Step 2: Convert to fraction form
    68,707.20/94,824.72 = 40,415.52/x
  3. Step 3: Cross multiply
    68,707.20x = 94,824.72 × 40,415.52
  4. Step 4: Simplify right side
    68,707.20x = 3,832,390,367.65
  5. Step 5: Solve for x
    x = 3,832,390,367.65/68,707.20
  6. Step 6: Final answer
    x = 55,778.58

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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.