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Finding the Fourth Proportional to 71,408.44, 98,536.75 and 39,576.70

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Solution

The fourth proportional to 71,408.44, 98,536.75 and 39,576.70 is: 54,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,408.44 : 98,536.75 = 39,576.70 : x
  2. Step 2: Convert to fraction form
    71,408.44/98,536.75 = 39,576.70/x
  3. Step 3: Cross multiply
    71,408.44x = 98,536.75 × 39,576.70
  4. Step 4: Simplify right side
    71,408.44x = 3,899,759,393.73
  5. Step 5: Solve for x
    x = 3,899,759,393.73/71,408.44
  6. Step 6: Final answer
    x = 54,612.02

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1.5x scale

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.