Home / 84,232.68-126,321.78-28,057.77

Finding the Fourth Proportional to 84,232.68, 126,321.78 and 28,057.77

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Solution

The fourth proportional to 84,232.68, 126,321.78 and 28,057.77 is: 42,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,232.68 : 126,321.78 = 28,057.77 : x
  2. Step 2: Convert to fraction form
    84,232.68/126,321.78 = 28,057.77/x
  3. Step 3: Cross multiply
    84,232.68x = 126,321.78 × 28,057.77
  4. Step 4: Simplify right side
    84,232.68x = 3,544,307,449.23
  5. Step 5: Solve for x
    x = 3,544,307,449.23/84,232.68
  6. Step 6: Final answer
    x = 42,077.58

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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.