Home / 81,236.23-121,802.44-39,032.33

Finding the Fourth Proportional to 81,236.23, 121,802.44 and 39,032.33

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Solution

The fourth proportional to 81,236.23, 121,802.44 and 39,032.33 is: 58,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236.23 : 121,802.44 = 39,032.33 : x
  2. Step 2: Convert to fraction form
    81,236.23/121,802.44 = 39,032.33/x
  3. Step 3: Cross multiply
    81,236.23x = 121,802.44 × 39,032.33
  4. Step 4: Simplify right side
    81,236.23x = 4,754,232,935.30
  5. Step 5: Solve for x
    x = 4,754,232,935.30/81,236.23
  6. Step 6: Final answer
    x = 58,523.55

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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.