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Finding the Fourth Proportional to 64,968.38, 89,654.55 and 36,676.70

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Solution

The fourth proportional to 64,968.38, 89,654.55 and 36,676.70 is: 50,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,968.38 : 89,654.55 = 36,676.70 : x
  2. Step 2: Convert to fraction form
    64,968.38/89,654.55 = 36,676.70/x
  3. Step 3: Cross multiply
    64,968.38x = 89,654.55 × 36,676.70
  4. Step 4: Simplify right side
    64,968.38x = 3,288,233,033.99
  5. Step 5: Solve for x
    x = 3,288,233,033.99/64,968.38
  6. Step 6: Final answer
    x = 50,612.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.