Home / 84,196.68-126,315.21-28,037.31

Finding the Fourth Proportional to 84,196.68, 126,315.21 and 28,037.31

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Solution

The fourth proportional to 84,196.68, 126,315.21 and 28,037.31 is: 42,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,196.68 : 126,315.21 = 28,037.31 : x
  2. Step 2: Convert to fraction form
    84,196.68/126,315.21 = 28,037.31/x
  3. Step 3: Cross multiply
    84,196.68x = 126,315.21 × 28,037.31
  4. Step 4: Simplify right side
    84,196.68x = 3,541,538,331.94
  5. Step 5: Solve for x
    x = 3,541,538,331.94/84,196.68
  6. Step 6: Final answer
    x = 42,062.68

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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.