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Finding the Fourth Proportional to 64,579.41, 89,123.36 and 36,286.92

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Solution

The fourth proportional to 64,579.41, 89,123.36 and 36,286.92 is: 50,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,579.41 : 89,123.36 = 36,286.92 : x
  2. Step 2: Convert to fraction form
    64,579.41/89,123.36 = 36,286.92/x
  3. Step 3: Cross multiply
    64,579.41x = 89,123.36 × 36,286.92
  4. Step 4: Simplify right side
    64,579.41x = 3,234,012,053.02
  5. Step 5: Solve for x
    x = 3,234,012,053.02/64,579.41
  6. Step 6: Final answer
    x = 50,078.07

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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.