Home / 84,470.57-126,734.00-28,316.24

Finding the Fourth Proportional to 84,470.57, 126,734.00 and 28,316.24

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Solution

The fourth proportional to 84,470.57, 126,734.00 and 28,316.24 is: 42,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,470.57 : 126,734.00 = 28,316.24 : x
  2. Step 2: Convert to fraction form
    84,470.57/126,734.00 = 28,316.24/x
  3. Step 3: Cross multiply
    84,470.57x = 126,734.00 × 28,316.24
  4. Step 4: Simplify right side
    84,470.57x = 3,588,629,584.91
  5. Step 5: Solve for x
    x = 3,588,629,584.91/84,470.57
  6. Step 6: Final answer
    x = 42,483.79

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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.