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Finding the Fourth Proportional to 65,558.86, 90,468.99 and 36,879.08

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Solution

The fourth proportional to 65,558.86, 90,468.99 and 36,879.08 is: 50,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.86 : 90,468.99 = 36,879.08 : x
  2. Step 2: Convert to fraction form
    65,558.86/90,468.99 = 36,879.08/x
  3. Step 3: Cross multiply
    65,558.86x = 90,468.99 × 36,879.08
  4. Step 4: Simplify right side
    65,558.86x = 3,336,412,667.38
  5. Step 5: Solve for x
    x = 3,336,412,667.38/65,558.86
  6. Step 6: Final answer
    x = 50,891.87

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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.