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Finding the Fourth Proportional to 70,763.80, 97,654.22 and 38,934.68

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Solution

The fourth proportional to 70,763.80, 97,654.22 and 38,934.68 is: 53,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.80 : 97,654.22 = 38,934.68 : x
  2. Step 2: Convert to fraction form
    70,763.80/97,654.22 = 38,934.68/x
  3. Step 3: Cross multiply
    70,763.80x = 97,654.22 × 38,934.68
  4. Step 4: Simplify right side
    70,763.80x = 3,802,135,806.35
  5. Step 5: Solve for x
    x = 3,802,135,806.35/70,763.80
  6. Step 6: Final answer
    x = 53,729.96

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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.