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Finding the Fourth Proportional to 66,886.48, 100,339.44 and 35,704.72

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Solution

The fourth proportional to 66,886.48, 100,339.44 and 35,704.72 is: 53,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886.48 : 100,339.44 = 35,704.72 : x
  2. Step 2: Convert to fraction form
    66,886.48/100,339.44 = 35,704.72/x
  3. Step 3: Cross multiply
    66,886.48x = 100,339.44 × 35,704.72
  4. Step 4: Simplify right side
    66,886.48x = 3,582,591,610.16
  5. Step 5: Solve for x
    x = 3,582,591,610.16/66,886.48
  6. Step 6: Final answer
    x = 53,562.27

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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.