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Finding the Fourth Proportional to 80,745.60, 121,069.80 and 41,379.60

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Solution

The fourth proportional to 80,745.60, 121,069.80 and 41,379.60 is: 62,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,745.60 : 121,069.80 = 41,379.60 : x
  2. Step 2: Convert to fraction form
    80,745.60/121,069.80 = 41,379.60/x
  3. Step 3: Cross multiply
    80,745.60x = 121,069.80 × 41,379.60
  4. Step 4: Simplify right side
    80,745.60x = 5,009,819,896.08
  5. Step 5: Solve for x
    x = 5,009,819,896.08/80,745.60
  6. Step 6: Final answer
    x = 62,044.49

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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.