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Finding the Fourth Proportional to 64,652.60, 96,978.94 and 20,282.84

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Solution

The fourth proportional to 64,652.60, 96,978.94 and 20,282.84 is: 30,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.60 : 96,978.94 = 20,282.84 : x
  2. Step 2: Convert to fraction form
    64,652.60/96,978.94 = 20,282.84/x
  3. Step 3: Cross multiply
    64,652.60x = 96,978.94 × 20,282.84
  4. Step 4: Simplify right side
    64,652.60x = 1,967,008,323.39
  5. Step 5: Solve for x
    x = 1,967,008,323.39/64,652.60
  6. Step 6: Final answer
    x = 30,424.27

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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.