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Finding the Fourth Proportional to 84,127.65, 126,215.90 and 27,200.33

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Solution

The fourth proportional to 84,127.65, 126,215.90 and 27,200.33 is: 40,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,127.65 : 126,215.90 = 27,200.33 : x
  2. Step 2: Convert to fraction form
    84,127.65/126,215.90 = 27,200.33/x
  3. Step 3: Cross multiply
    84,127.65x = 126,215.90 × 27,200.33
  4. Step 4: Simplify right side
    84,127.65x = 3,433,114,131.25
  5. Step 5: Solve for x
    x = 3,433,114,131.25/84,127.65
  6. Step 6: Final answer
    x = 40,808.39

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1.5x scale

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.