Home / 43,228.80-64,843.20-41,187.60

Finding the Fourth Proportional to 43,228.80, 64,843.20 and 41,187.60

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Solution

The fourth proportional to 43,228.80, 64,843.20 and 41,187.60 is: 61,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,228.80 : 64,843.20 = 41,187.60 : x
  2. Step 2: Convert to fraction form
    43,228.80/64,843.20 = 41,187.60/x
  3. Step 3: Cross multiply
    43,228.80x = 64,843.20 × 41,187.60
  4. Step 4: Simplify right side
    43,228.80x = 2,670,735,784.32
  5. Step 5: Solve for x
    x = 2,670,735,784.32/43,228.80
  6. Step 6: Final answer
    x = 61,781.40

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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.