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Finding the Fourth Proportional to 71,066.60, 98,076.66 and 40,861.88

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Solution

The fourth proportional to 71,066.60, 98,076.66 and 40,861.88 is: 56,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.60 : 98,076.66 = 40,861.88 : x
  2. Step 2: Convert to fraction form
    71,066.60/98,076.66 = 40,861.88/x
  3. Step 3: Cross multiply
    71,066.60x = 98,076.66 × 40,861.88
  4. Step 4: Simplify right side
    71,066.60x = 4,007,596,711.72
  5. Step 5: Solve for x
    x = 4,007,596,711.72/71,066.60
  6. Step 6: Final answer
    x = 56,392.13

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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.