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Finding the Fourth Proportional to 53,179.64, 79,769.47 and 36,489.07

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Solution

The fourth proportional to 53,179.64, 79,769.47 and 36,489.07 is: 54,733.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.64 : 79,769.47 = 36,489.07 : x
  2. Step 2: Convert to fraction form
    53,179.64/79,769.47 = 36,489.07/x
  3. Step 3: Cross multiply
    53,179.64x = 79,769.47 × 36,489.07
  4. Step 4: Simplify right side
    53,179.64x = 2,910,713,774.69
  5. Step 5: Solve for x
    x = 2,910,713,774.69/53,179.64
  6. Step 6: Final answer
    x = 54,733.61

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Similar ratio
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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.