Home / 54,272.40-81,409.44-19,187.52

Finding the Fourth Proportional to 54,272.40, 81,409.44 and 19,187.52

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Solution

The fourth proportional to 54,272.40, 81,409.44 and 19,187.52 is: 28,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.40 : 81,409.44 = 19,187.52 : x
  2. Step 2: Convert to fraction form
    54,272.40/81,409.44 = 19,187.52/x
  3. Step 3: Cross multiply
    54,272.40x = 81,409.44 × 19,187.52
  4. Step 4: Simplify right side
    54,272.40x = 1,562,045,258.19
  5. Step 5: Solve for x
    x = 1,562,045,258.19/54,272.40
  6. Step 6: Final answer
    x = 28,781.58

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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.