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Finding the Fourth Proportional to 64,694.09, 89,273.04 and 36,394.31

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Solution

The fourth proportional to 64,694.09, 89,273.04 and 36,394.31 is: 50,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.09 : 89,273.04 = 36,394.31 : x
  2. Step 2: Convert to fraction form
    64,694.09/89,273.04 = 36,394.31/x
  3. Step 3: Cross multiply
    64,694.09x = 89,273.04 × 36,394.31
  4. Step 4: Simplify right side
    64,694.09x = 3,249,030,779.11
  5. Step 5: Solve for x
    x = 3,249,030,779.11/64,694.09
  6. Step 6: Final answer
    x = 50,221.44

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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.