Home / 54,728.72-75,530.21-30,860.34

Finding the Fourth Proportional to 54,728.72, 75,530.21 and 30,860.34

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Solution

The fourth proportional to 54,728.72, 75,530.21 and 30,860.34 is: 42,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,728.72 : 75,530.21 = 30,860.34 : x
  2. Step 2: Convert to fraction form
    54,728.72/75,530.21 = 30,860.34/x
  3. Step 3: Cross multiply
    54,728.72x = 75,530.21 × 30,860.34
  4. Step 4: Simplify right side
    54,728.72x = 2,330,887,960.87
  5. Step 5: Solve for x
    x = 2,330,887,960.87/54,728.72
  6. Step 6: Final answer
    x = 42,589.85

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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.