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Finding the Fourth Proportional to 65,316.80, 97,974.56 and 18,563.52

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Solution

The fourth proportional to 65,316.80, 97,974.56 and 18,563.52 is: 27,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.80 : 97,974.56 = 18,563.52 : x
  2. Step 2: Convert to fraction form
    65,316.80/97,974.56 = 18,563.52/x
  3. Step 3: Cross multiply
    65,316.80x = 97,974.56 × 18,563.52
  4. Step 4: Simplify right side
    65,316.80x = 1,818,752,704.05
  5. Step 5: Solve for x
    x = 1,818,752,704.05/65,316.80
  6. Step 6: Final answer
    x = 27,845.10

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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.