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Finding the Fourth Proportional to 71,027.70, 98,014.89 and 40,791.70

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Solution

The fourth proportional to 71,027.70, 98,014.89 and 40,791.70 is: 56,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.70 : 98,014.89 = 40,791.70 : x
  2. Step 2: Convert to fraction form
    71,027.70/98,014.89 = 40,791.70/x
  3. Step 3: Cross multiply
    71,027.70x = 98,014.89 × 40,791.70
  4. Step 4: Simplify right side
    71,027.70x = 3,998,193,988.41
  5. Step 5: Solve for x
    x = 3,998,193,988.41/71,027.70
  6. Step 6: Final answer
    x = 56,290.63

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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.