Home / 81,026.25-121,525.70-29,724.33

Finding the Fourth Proportional to 81,026.25, 121,525.70 and 29,724.33

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Solution

The fourth proportional to 81,026.25, 121,525.70 and 29,724.33 is: 44,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.25 : 121,525.70 = 29,724.33 : x
  2. Step 2: Convert to fraction form
    81,026.25/121,525.70 = 29,724.33/x
  3. Step 3: Cross multiply
    81,026.25x = 121,525.70 × 29,724.33
  4. Step 4: Simplify right side
    81,026.25x = 3,612,270,484.58
  5. Step 5: Solve for x
    x = 3,612,270,484.58/81,026.25
  6. Step 6: Final answer
    x = 44,581.48

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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.