Home / 54,408.19-75,083.39-30,534.90

Finding the Fourth Proportional to 54,408.19, 75,083.39 and 30,534.90

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Solution

The fourth proportional to 54,408.19, 75,083.39 and 30,534.90 is: 42,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,408.19 : 75,083.39 = 30,534.90 : x
  2. Step 2: Convert to fraction form
    54,408.19/75,083.39 = 30,534.90/x
  3. Step 3: Cross multiply
    54,408.19x = 75,083.39 × 30,534.90
  4. Step 4: Simplify right side
    54,408.19x = 2,292,663,805.31
  5. Step 5: Solve for x
    x = 2,292,663,805.31/54,408.19
  6. Step 6: Final answer
    x = 42,138.21

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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.