Home / 84,619.52-126,940.08-28,435.52

Finding the Fourth Proportional to 84,619.52, 126,940.08 and 28,435.52

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Solution

The fourth proportional to 84,619.52, 126,940.08 and 28,435.52 is: 42,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.52 : 126,940.08 = 28,435.52 : x
  2. Step 2: Convert to fraction form
    84,619.52/126,940.08 = 28,435.52/x
  3. Step 3: Cross multiply
    84,619.52x = 126,940.08 × 28,435.52
  4. Step 4: Simplify right side
    84,619.52x = 3,609,607,183.64
  5. Step 5: Solve for x
    x = 3,609,607,183.64/84,619.52
  6. Step 6: Final answer
    x = 42,656.91

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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.