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Finding the Fourth Proportional to 70,373.97, 97,092 and 40,137.57

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Solution

The fourth proportional to 70,373.97, 97,092 and 40,137.57 is: 55,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,373.97 : 97,092 = 40,137.57 : x
  2. Step 2: Convert to fraction form
    70,373.97/97,092 = 40,137.57/x
  3. Step 3: Cross multiply
    70,373.97x = 97,092 × 40,137.57
  4. Step 4: Simplify right side
    70,373.97x = 3,897,036,946.44
  5. Step 5: Solve for x
    x = 3,897,036,946.44/70,373.97
  6. Step 6: Final answer
    x = 55,376.11

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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.