Home / 61,161.48-91,742.31-16,788.78

Finding the Fourth Proportional to 61,161.48, 91,742.31 and 16,788.78

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Solution

The fourth proportional to 61,161.48, 91,742.31 and 16,788.78 is: 25,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,161.48 : 91,742.31 = 16,788.78 : x
  2. Step 2: Convert to fraction form
    61,161.48/91,742.31 = 16,788.78/x
  3. Step 3: Cross multiply
    61,161.48x = 91,742.31 × 16,788.78
  4. Step 4: Simplify right side
    61,161.48x = 1,540,241,459.28
  5. Step 5: Solve for x
    x = 1,540,241,459.28/61,161.48
  6. Step 6: Final answer
    x = 25,183.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.