Home / 54,523.09-81,777.43-18,976.78

Finding the Fourth Proportional to 54,523.09, 81,777.43 and 18,976.78

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Solution

The fourth proportional to 54,523.09, 81,777.43 and 18,976.78 is: 28,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,523.09 : 81,777.43 = 18,976.78 : x
  2. Step 2: Convert to fraction form
    54,523.09/81,777.43 = 18,976.78/x
  3. Step 3: Cross multiply
    54,523.09x = 81,777.43 × 18,976.78
  4. Step 4: Simplify right side
    54,523.09x = 1,551,872,298.08
  5. Step 5: Solve for x
    x = 1,551,872,298.08/54,523.09
  6. Step 6: Final answer
    x = 28,462.66

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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.