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Finding the Fourth Proportional to 68,914.76, 95,112.77 and 42,072.89

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Solution

The fourth proportional to 68,914.76, 95,112.77 and 42,072.89 is: 58,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,914.76 : 95,112.77 = 42,072.89 : x
  2. Step 2: Convert to fraction form
    68,914.76/95,112.77 = 42,072.89/x
  3. Step 3: Cross multiply
    68,914.76x = 95,112.77 × 42,072.89
  4. Step 4: Simplify right side
    68,914.76x = 4,001,668,423.88
  5. Step 5: Solve for x
    x = 4,001,668,423.88/68,914.76
  6. Step 6: Final answer
    x = 58,066.93

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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.