Home / 43,220.40-64,879.20-33,403.20

Finding the Fourth Proportional to 43,220.40, 64,879.20 and 33,403.20

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Solution

The fourth proportional to 43,220.40, 64,879.20 and 33,403.20 is: 50,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,220.40 : 64,879.20 = 33,403.20 : x
  2. Step 2: Convert to fraction form
    43,220.40/64,879.20 = 33,403.20/x
  3. Step 3: Cross multiply
    43,220.40x = 64,879.20 × 33,403.20
  4. Step 4: Simplify right side
    43,220.40x = 2,167,172,893.44
  5. Step 5: Solve for x
    x = 2,167,172,893.44/43,220.40
  6. Step 6: Final answer
    x = 50,142.36

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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.