Home / 54,465.45-81,727.20-21,186.60

Finding the Fourth Proportional to 54,465.45, 81,727.20 and 21,186.60

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Solution

The fourth proportional to 54,465.45, 81,727.20 and 21,186.60 is: 31,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,465.45 : 81,727.20 = 21,186.60 : x
  2. Step 2: Convert to fraction form
    54,465.45/81,727.20 = 21,186.60/x
  3. Step 3: Cross multiply
    54,465.45x = 81,727.20 × 21,186.60
  4. Step 4: Simplify right side
    54,465.45x = 1,731,521,495.52
  5. Step 5: Solve for x
    x = 1,731,521,495.52/54,465.45
  6. Step 6: Final answer
    x = 31,791.19

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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.