Home / 89,837.20-134,496.60-54,845.20

Finding the Fourth Proportional to 89,837.20, 134,496.60 and 54,845.20

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Solution

The fourth proportional to 89,837.20, 134,496.60 and 54,845.20 is: 82,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,837.20 : 134,496.60 = 54,845.20 : x
  2. Step 2: Convert to fraction form
    89,837.20/134,496.60 = 54,845.20/x
  3. Step 3: Cross multiply
    89,837.20x = 134,496.60 × 54,845.20
  4. Step 4: Simplify right side
    89,837.20x = 7,376,492,926.32
  5. Step 5: Solve for x
    x = 7,376,492,926.32/89,837.20
  6. Step 6: Final answer
    x = 82,109.56

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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.