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Finding the Fourth Proportional to 64,375.57, 96,544.90 and 19,401.28

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Solution

The fourth proportional to 64,375.57, 96,544.90 and 19,401.28 is: 29,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,375.57 : 96,544.90 = 19,401.28 : x
  2. Step 2: Convert to fraction form
    64,375.57/96,544.90 = 19,401.28/x
  3. Step 3: Cross multiply
    64,375.57x = 96,544.90 × 19,401.28
  4. Step 4: Simplify right side
    64,375.57x = 1,873,094,528.63
  5. Step 5: Solve for x
    x = 1,873,094,528.63/64,375.57
  6. Step 6: Final answer
    x = 29,096.36

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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.