Home / 89,839.13-134,789.77-30,716.42

Finding the Fourth Proportional to 89,839.13, 134,789.77 and 30,716.42

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Solution

The fourth proportional to 89,839.13, 134,789.77 and 30,716.42 is: 46,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,839.13 : 134,789.77 = 30,716.42 : x
  2. Step 2: Convert to fraction form
    89,839.13/134,789.77 = 30,716.42/x
  3. Step 3: Cross multiply
    89,839.13x = 134,789.77 × 30,716.42
  4. Step 4: Simplify right side
    89,839.13x = 4,140,258,551.47
  5. Step 5: Solve for x
    x = 4,140,258,551.47/89,839.13
  6. Step 6: Final answer
    x = 46,085.25

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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.