Home / 70,813.20-97,722.82-38,982.28

Finding the Fourth Proportional to 70,813.20, 97,722.82 and 38,982.28

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Solution

The fourth proportional to 70,813.20, 97,722.82 and 38,982.28 is: 53,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,813.20 : 97,722.82 = 38,982.28 : x
  2. Step 2: Convert to fraction form
    70,813.20/97,722.82 = 38,982.28/x
  3. Step 3: Cross multiply
    70,813.20x = 97,722.82 × 38,982.28
  4. Step 4: Simplify right side
    70,813.20x = 3,809,458,331.63
  5. Step 5: Solve for x
    x = 3,809,458,331.63/70,813.20
  6. Step 6: Final answer
    x = 53,795.88

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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.