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Finding the Fourth Proportional to 70,481.40, 97,265.04 and 40,270.68

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Solution

The fourth proportional to 70,481.40, 97,265.04 and 40,270.68 is: 55,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481.40 : 97,265.04 = 40,270.68 : x
  2. Step 2: Convert to fraction form
    70,481.40/97,265.04 = 40,270.68/x
  3. Step 3: Cross multiply
    70,481.40x = 97,265.04 × 40,270.68
  4. Step 4: Simplify right side
    70,481.40x = 3,916,929,301.03
  5. Step 5: Solve for x
    x = 3,916,929,301.03/70,481.40
  6. Step 6: Final answer
    x = 55,573.94

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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.