Home / 71,121.35-98,147.22-40,905.25

Finding the Fourth Proportional to 71,121.35, 98,147.22 and 40,905.25

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Solution

The fourth proportional to 71,121.35, 98,147.22 and 40,905.25 is: 56,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,121.35 : 98,147.22 = 40,905.25 : x
  2. Step 2: Convert to fraction form
    71,121.35/98,147.22 = 40,905.25/x
  3. Step 3: Cross multiply
    71,121.35x = 98,147.22 × 40,905.25
  4. Step 4: Simplify right side
    71,121.35x = 4,014,736,570.91
  5. Step 5: Solve for x
    x = 4,014,736,570.91/71,121.35
  6. Step 6: Final answer
    x = 56,449.11

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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.