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Finding the Fourth Proportional to 70,342.67, 97,073.24 and 40,127.69

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Solution

The fourth proportional to 70,342.67, 97,073.24 and 40,127.69 is: 55,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,342.67 : 97,073.24 = 40,127.69 : x
  2. Step 2: Convert to fraction form
    70,342.67/97,073.24 = 40,127.69/x
  3. Step 3: Cross multiply
    70,342.67x = 97,073.24 × 40,127.69
  4. Step 4: Simplify right side
    70,342.67x = 3,895,324,924.06
  5. Step 5: Solve for x
    x = 3,895,324,924.06/70,342.67
  6. Step 6: Final answer
    x = 55,376.41

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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.