Home / 70,780.27-97,676.80-38,949.19

Finding the Fourth Proportional to 70,780.27, 97,676.80 and 38,949.19

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Solution

The fourth proportional to 70,780.27, 97,676.80 and 38,949.19 is: 53,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,780.27 : 97,676.80 = 38,949.19 : x
  2. Step 2: Convert to fraction form
    70,780.27/97,676.80 = 38,949.19/x
  3. Step 3: Cross multiply
    70,780.27x = 97,676.80 × 38,949.19
  4. Step 4: Simplify right side
    70,780.27x = 3,804,432,241.79
  5. Step 5: Solve for x
    x = 3,804,432,241.79/70,780.27
  6. Step 6: Final answer
    x = 53,749.90

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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.