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Finding the Fourth Proportional to 64,394.88, 96,591.84 and 20,021.55

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Solution

The fourth proportional to 64,394.88, 96,591.84 and 20,021.55 is: 30,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,394.88 : 96,591.84 = 20,021.55 : x
  2. Step 2: Convert to fraction form
    64,394.88/96,591.84 = 20,021.55/x
  3. Step 3: Cross multiply
    64,394.88x = 96,591.84 × 20,021.55
  4. Step 4: Simplify right side
    64,394.88x = 1,933,918,354.15
  5. Step 5: Solve for x
    x = 1,933,918,354.15/64,394.88
  6. Step 6: Final answer
    x = 30,032.18

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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.