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Finding the Fourth Proportional to 53,491.56, 80,207.34 and 36,643.60

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Solution

The fourth proportional to 53,491.56, 80,207.34 and 36,643.60 is: 54,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,491.56 : 80,207.34 = 36,643.60 : x
  2. Step 2: Convert to fraction form
    53,491.56/80,207.34 = 36,643.60/x
  3. Step 3: Cross multiply
    53,491.56x = 80,207.34 × 36,643.60
  4. Step 4: Simplify right side
    53,491.56x = 2,939,085,862.72
  5. Step 5: Solve for x
    x = 2,939,085,862.72/53,491.56
  6. Step 6: Final answer
    x = 54,944.85

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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.