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Finding the Fourth Proportional to 64,134.84, 96,212.78 and 19,760.60

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Solution

The fourth proportional to 64,134.84, 96,212.78 and 19,760.60 is: 29,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,134.84 : 96,212.78 = 19,760.60 : x
  2. Step 2: Convert to fraction form
    64,134.84/96,212.78 = 19,760.60/x
  3. Step 3: Cross multiply
    64,134.84x = 96,212.78 × 19,760.60
  4. Step 4: Simplify right side
    64,134.84x = 1,901,222,260.47
  5. Step 5: Solve for x
    x = 1,901,222,260.47/64,134.84
  6. Step 6: Final answer
    x = 29,644.14

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1.5x scale

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.