Home / 54,005.37-74,520-30,127.43

Finding the Fourth Proportional to 54,005.37, 74,520 and 30,127.43

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Solution

The fourth proportional to 54,005.37, 74,520 and 30,127.43 is: 41,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,005.37 : 74,520 = 30,127.43 : x
  2. Step 2: Convert to fraction form
    54,005.37/74,520 = 30,127.43/x
  3. Step 3: Cross multiply
    54,005.37x = 74,520 × 30,127.43
  4. Step 4: Simplify right side
    54,005.37x = 2,245,095,711
  5. Step 5: Solve for x
    x = 2,245,095,711/54,005.37
  6. Step 6: Final answer
    x = 41,571.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.