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Finding the Fourth Proportional to 71,165.03, 98,188.54 and 40,958.91

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Solution

The fourth proportional to 71,165.03, 98,188.54 and 40,958.91 is: 56,512.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,165.03 : 98,188.54 = 40,958.91 : x
  2. Step 2: Convert to fraction form
    71,165.03/98,188.54 = 40,958.91/x
  3. Step 3: Cross multiply
    71,165.03x = 98,188.54 × 40,958.91
  4. Step 4: Simplify right side
    71,165.03x = 4,021,695,470.49
  5. Step 5: Solve for x
    x = 4,021,695,470.49/71,165.03
  6. Step 6: Final answer
    x = 56,512.25

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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.