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Finding the Fourth Proportional to 70,770.24, 97,662.92 and 38,938.46

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Solution

The fourth proportional to 70,770.24, 97,662.92 and 38,938.46 is: 53,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,770.24 : 97,662.92 = 38,938.46 : x
  2. Step 2: Convert to fraction form
    70,770.24/97,662.92 = 38,938.46/x
  3. Step 3: Cross multiply
    70,770.24x = 97,662.92 × 38,938.46
  4. Step 4: Simplify right side
    70,770.24x = 3,802,843,020.90
  5. Step 5: Solve for x
    x = 3,802,843,020.90/70,770.24
  6. Step 6: Final answer
    x = 53,735.06

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1.5x scale

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.