Home / 100,046.11-138,058.48-54,715.27

Finding the Fourth Proportional to 100,046.11, 138,058.48 and 54,715.27

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Solution

The fourth proportional to 100,046.11, 138,058.48 and 54,715.27 is: 75,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,046.11 : 138,058.48 = 54,715.27 : x
  2. Step 2: Convert to fraction form
    100,046.11/138,058.48 = 54,715.27/x
  3. Step 3: Cross multiply
    100,046.11x = 138,058.48 × 54,715.27
  4. Step 4: Simplify right side
    100,046.11x = 7,553,907,008.99
  5. Step 5: Solve for x
    x = 7,553,907,008.99/100,046.11
  6. Step 6: Final answer
    x = 75,504.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.