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Finding the Fourth Proportional to 89,481.35, 133,929.97 and 65,782.62

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Solution

The fourth proportional to 89,481.35, 133,929.97 and 65,782.62 is: 98,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,481.35 : 133,929.97 = 65,782.62 : x
  2. Step 2: Convert to fraction form
    89,481.35/133,929.97 = 65,782.62/x
  3. Step 3: Cross multiply
    89,481.35x = 133,929.97 × 65,782.62
  4. Step 4: Simplify right side
    89,481.35x = 8,810,264,158.66
  5. Step 5: Solve for x
    x = 8,810,264,158.66/89,481.35
  6. Step 6: Final answer
    x = 98,459.22

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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.