Home / 89,039.76-133,538.68-25,843.20

Finding the Fourth Proportional to 89,039.76, 133,538.68 and 25,843.20

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Solution

The fourth proportional to 89,039.76, 133,538.68 and 25,843.20 is: 38,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,039.76 : 133,538.68 = 25,843.20 : x
  2. Step 2: Convert to fraction form
    89,039.76/133,538.68 = 25,843.20/x
  3. Step 3: Cross multiply
    89,039.76x = 133,538.68 × 25,843.20
  4. Step 4: Simplify right side
    89,039.76x = 3,451,066,952.30
  5. Step 5: Solve for x
    x = 3,451,066,952.30/89,039.76
  6. Step 6: Final answer
    x = 38,758.72

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1.5x scale

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.