Home / 70,629.24-97,440.72-40,398.42

Finding the Fourth Proportional to 70,629.24, 97,440.72 and 40,398.42

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Solution

The fourth proportional to 70,629.24, 97,440.72 and 40,398.42 is: 55,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.24 : 97,440.72 = 40,398.42 : x
  2. Step 2: Convert to fraction form
    70,629.24/97,440.72 = 40,398.42/x
  3. Step 3: Cross multiply
    70,629.24x = 97,440.72 × 40,398.42
  4. Step 4: Simplify right side
    70,629.24x = 3,936,451,131.66
  5. Step 5: Solve for x
    x = 3,936,451,131.66/70,629.24
  6. Step 6: Final answer
    x = 55,734.02

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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.