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Finding the Fourth Proportional to 70,876, 97,808.88 and 39,044.89

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Solution

The fourth proportional to 70,876, 97,808.88 and 39,044.89 is: 53,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,876 : 97,808.88 = 39,044.89 : x
  2. Step 2: Convert to fraction form
    70,876/97,808.88 = 39,044.89/x
  3. Step 3: Cross multiply
    70,876x = 97,808.88 × 39,044.89
  4. Step 4: Simplify right side
    70,876x = 3,818,936,960.62
  5. Step 5: Solve for x
    x = 3,818,936,960.62/70,876
  6. Step 6: Final answer
    x = 53,881.95

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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.