Home / 65,685.44-98,528.07-21,316.61

Finding the Fourth Proportional to 65,685.44, 98,528.07 and 21,316.61

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Solution

The fourth proportional to 65,685.44, 98,528.07 and 21,316.61 is: 31,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,685.44 : 98,528.07 = 21,316.61 : x
  2. Step 2: Convert to fraction form
    65,685.44/98,528.07 = 21,316.61/x
  3. Step 3: Cross multiply
    65,685.44x = 98,528.07 × 21,316.61
  4. Step 4: Simplify right side
    65,685.44x = 2,100,284,442.24
  5. Step 5: Solve for x
    x = 2,100,284,442.24/65,685.44
  6. Step 6: Final answer
    x = 31,974.89

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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.