Home / 50,309.60-75,431.39-28,125.32

Finding the Fourth Proportional to 50,309.60, 75,431.39 and 28,125.32

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Solution

The fourth proportional to 50,309.60, 75,431.39 and 28,125.32 is: 42,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,309.60 : 75,431.39 = 28,125.32 : x
  2. Step 2: Convert to fraction form
    50,309.60/75,431.39 = 28,125.32/x
  3. Step 3: Cross multiply
    50,309.60x = 75,431.39 × 28,125.32
  4. Step 4: Simplify right side
    50,309.60x = 2,121,531,464.01
  5. Step 5: Solve for x
    x = 2,121,531,464.01/50,309.60
  6. Step 6: Final answer
    x = 42,169.52

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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.