Home / 54,083.07-81,124.56-20,355.39

Finding the Fourth Proportional to 54,083.07, 81,124.56 and 20,355.39

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Solution

The fourth proportional to 54,083.07, 81,124.56 and 20,355.39 is: 30,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,083.07 : 81,124.56 = 20,355.39 : x
  2. Step 2: Convert to fraction form
    54,083.07/81,124.56 = 20,355.39/x
  3. Step 3: Cross multiply
    54,083.07x = 81,124.56 × 20,355.39
  4. Step 4: Simplify right side
    54,083.07x = 1,651,322,057.38
  5. Step 5: Solve for x
    x = 1,651,322,057.38/54,083.07
  6. Step 6: Final answer
    x = 30,533.07

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1.5x scale

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.