Home / 85,169.84-117,408.35-54,539.69

Finding the Fourth Proportional to 85,169.84, 117,408.35 and 54,539.69

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Solution

The fourth proportional to 85,169.84, 117,408.35 and 54,539.69 is: 75,184.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,169.84 : 117,408.35 = 54,539.69 : x
  2. Step 2: Convert to fraction form
    85,169.84/117,408.35 = 54,539.69/x
  3. Step 3: Cross multiply
    85,169.84x = 117,408.35 × 54,539.69
  4. Step 4: Simplify right side
    85,169.84x = 6,403,414,561.72
  5. Step 5: Solve for x
    x = 6,403,414,561.72/85,169.84
  6. Step 6: Final answer
    x = 75,184.07

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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.