Home / 89,919.20-134,878.80-27,581.60

Finding the Fourth Proportional to 89,919.20, 134,878.80 and 27,581.60

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Solution

The fourth proportional to 89,919.20, 134,878.80 and 27,581.60 is: 41,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.20 : 134,878.80 = 27,581.60 : x
  2. Step 2: Convert to fraction form
    89,919.20/134,878.80 = 27,581.60/x
  3. Step 3: Cross multiply
    89,919.20x = 134,878.80 × 27,581.60
  4. Step 4: Simplify right side
    89,919.20x = 3,720,173,110.08
  5. Step 5: Solve for x
    x = 3,720,173,110.08/89,919.20
  6. Step 6: Final answer
    x = 41,372.40

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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.