Home / 70,996.43-97,976.93-38,731.60

Finding the Fourth Proportional to 70,996.43, 97,976.93 and 38,731.60

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Solution

The fourth proportional to 70,996.43, 97,976.93 and 38,731.60 is: 53,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996.43 : 97,976.93 = 38,731.60 : x
  2. Step 2: Convert to fraction form
    70,996.43/97,976.93 = 38,731.60/x
  3. Step 3: Cross multiply
    70,996.43x = 97,976.93 × 38,731.60
  4. Step 4: Simplify right side
    70,996.43x = 3,794,803,190.80
  5. Step 5: Solve for x
    x = 3,794,803,190.80/70,996.43
  6. Step 6: Final answer
    x = 53,450.62

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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.