Home / 65,481.21-98,178.08-20,487.33

Finding the Fourth Proportional to 65,481.21, 98,178.08 and 20,487.33

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Solution

The fourth proportional to 65,481.21, 98,178.08 and 20,487.33 is: 30,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,481.21 : 98,178.08 = 20,487.33 : x
  2. Step 2: Convert to fraction form
    65,481.21/98,178.08 = 20,487.33/x
  3. Step 3: Cross multiply
    65,481.21x = 98,178.08 × 20,487.33
  4. Step 4: Simplify right side
    65,481.21x = 2,011,406,621.29
  5. Step 5: Solve for x
    x = 2,011,406,621.29/65,481.21
  6. Step 6: Final answer
    x = 30,717.31

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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.