Home / 84,723.66-126,996.81-28,544.36

Finding the Fourth Proportional to 84,723.66, 126,996.81 and 28,544.36

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Solution

The fourth proportional to 84,723.66, 126,996.81 and 28,544.36 is: 42,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,723.66 : 126,996.81 = 28,544.36 : x
  2. Step 2: Convert to fraction form
    84,723.66/126,996.81 = 28,544.36/x
  3. Step 3: Cross multiply
    84,723.66x = 126,996.81 × 28,544.36
  4. Step 4: Simplify right side
    84,723.66x = 3,625,042,028.51
  5. Step 5: Solve for x
    x = 3,625,042,028.51/84,723.66
  6. Step 6: Final answer
    x = 42,786.66

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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.