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Finding the Fourth Proportional to 64,395.72, 96,599.72 and 20,010.52

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Solution

The fourth proportional to 64,395.72, 96,599.72 and 20,010.52 is: 30,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,395.72 : 96,599.72 = 20,010.52 : x
  2. Step 2: Convert to fraction form
    64,395.72/96,599.72 = 20,010.52/x
  3. Step 3: Cross multiply
    64,395.72x = 96,599.72 × 20,010.52
  4. Step 4: Simplify right side
    64,395.72x = 1,933,010,629.05
  5. Step 5: Solve for x
    x = 1,933,010,629.05/64,395.72
  6. Step 6: Final answer
    x = 30,017.69

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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.