Home / 39,769.58-54,825.53-31,631.90

Finding the Fourth Proportional to 39,769.58, 54,825.53 and 31,631.90

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Solution

The fourth proportional to 39,769.58, 54,825.53 and 31,631.90 is: 43,607.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.58 : 54,825.53 = 31,631.90 : x
  2. Step 2: Convert to fraction form
    39,769.58/54,825.53 = 31,631.90/x
  3. Step 3: Cross multiply
    39,769.58x = 54,825.53 × 31,631.90
  4. Step 4: Simplify right side
    39,769.58x = 1,734,235,250.12
  5. Step 5: Solve for x
    x = 1,734,235,250.12/39,769.58
  6. Step 6: Final answer
    x = 43,607.08

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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.