Home / 81,208.42-121,833.60-25,047.26

Finding the Fourth Proportional to 81,208.42, 121,833.60 and 25,047.26

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Solution

The fourth proportional to 81,208.42, 121,833.60 and 25,047.26 is: 37,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,208.42 : 121,833.60 = 25,047.26 : x
  2. Step 2: Convert to fraction form
    81,208.42/121,833.60 = 25,047.26/x
  3. Step 3: Cross multiply
    81,208.42x = 121,833.60 × 25,047.26
  4. Step 4: Simplify right side
    81,208.42x = 3,051,597,855.94
  5. Step 5: Solve for x
    x = 3,051,597,855.94/81,208.42
  6. Step 6: Final answer
    x = 37,577.36

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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.