Home / 42,871.80-64,297.62-11,699.64

Finding the Fourth Proportional to 42,871.80, 64,297.62 and 11,699.64

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Solution

The fourth proportional to 42,871.80, 64,297.62 and 11,699.64 is: 17,546.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,871.80 : 64,297.62 = 11,699.64 : x
  2. Step 2: Convert to fraction form
    42,871.80/64,297.62 = 11,699.64/x
  3. Step 3: Cross multiply
    42,871.80x = 64,297.62 × 11,699.64
  4. Step 4: Simplify right side
    42,871.80x = 752,259,006.86
  5. Step 5: Solve for x
    x = 752,259,006.86/42,871.80
  6. Step 6: Final answer
    x = 17,546.71

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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.