Home / 100,058.28-138,083.99-54,733.56

Finding the Fourth Proportional to 100,058.28, 138,083.99 and 54,733.56

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Solution

The fourth proportional to 100,058.28, 138,083.99 and 54,733.56 is: 75,534.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,058.28 : 138,083.99 = 54,733.56 : x
  2. Step 2: Convert to fraction form
    100,058.28/138,083.99 = 54,733.56/x
  3. Step 3: Cross multiply
    100,058.28x = 138,083.99 × 54,733.56
  4. Step 4: Simplify right side
    100,058.28x = 7,557,828,078.04
  5. Step 5: Solve for x
    x = 7,557,828,078.04/100,058.28
  6. Step 6: Final answer
    x = 75,534.26

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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.