Home / 65,618.23-98,443.03-21,245.03

Finding the Fourth Proportional to 65,618.23, 98,443.03 and 21,245.03

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Solution

The fourth proportional to 65,618.23, 98,443.03 and 21,245.03 is: 31,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,618.23 : 98,443.03 = 21,245.03 : x
  2. Step 2: Convert to fraction form
    65,618.23/98,443.03 = 21,245.03/x
  3. Step 3: Cross multiply
    65,618.23x = 98,443.03 × 21,245.03
  4. Step 4: Simplify right side
    65,618.23x = 2,091,425,318.64
  5. Step 5: Solve for x
    x = 2,091,425,318.64/65,618.23
  6. Step 6: Final answer
    x = 31,872.62

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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.