Home / 64,868.60-89,519.19-36,187.31

Finding the Fourth Proportional to 64,868.60, 89,519.19 and 36,187.31

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Solution

The fourth proportional to 64,868.60, 89,519.19 and 36,187.31 is: 49,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.60 : 89,519.19 = 36,187.31 : x
  2. Step 2: Convert to fraction form
    64,868.60/89,519.19 = 36,187.31/x
  3. Step 3: Cross multiply
    64,868.60x = 89,519.19 × 36,187.31
  4. Step 4: Simplify right side
    64,868.60x = 3,239,458,231.88
  5. Step 5: Solve for x
    x = 3,239,458,231.88/64,868.60
  6. Step 6: Final answer
    x = 49,938.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.