Home / 65,243.10-97,876.96-20,857.94

Finding the Fourth Proportional to 65,243.10, 97,876.96 and 20,857.94

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Solution

The fourth proportional to 65,243.10, 97,876.96 and 20,857.94 is: 31,290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243.10 : 97,876.96 = 20,857.94 : x
  2. Step 2: Convert to fraction form
    65,243.10/97,876.96 = 20,857.94/x
  3. Step 3: Cross multiply
    65,243.10x = 97,876.96 × 20,857.94
  4. Step 4: Simplify right side
    65,243.10x = 2,041,511,584.57
  5. Step 5: Solve for x
    x = 2,041,511,584.57/65,243.10
  6. Step 6: Final answer
    x = 31,290.84

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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.