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Finding the Fourth Proportional to 70,722, 97,596.36 and 38,892.96

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Solution

The fourth proportional to 70,722, 97,596.36 and 38,892.96 is: 53,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722 : 97,596.36 = 38,892.96 : x
  2. Step 2: Convert to fraction form
    70,722/97,596.36 = 38,892.96/x
  3. Step 3: Cross multiply
    70,722x = 97,596.36 × 38,892.96
  4. Step 4: Simplify right side
    70,722x = 3,795,811,325.63
  5. Step 5: Solve for x
    x = 3,795,811,325.63/70,722
  6. Step 6: Final answer
    x = 53,672.28

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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.