Home / 54,621.87-75,375.32-30,747.75

Finding the Fourth Proportional to 54,621.87, 75,375.32 and 30,747.75

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Solution

The fourth proportional to 54,621.87, 75,375.32 and 30,747.75 is: 42,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.87 : 75,375.32 = 30,747.75 : x
  2. Step 2: Convert to fraction form
    54,621.87/75,375.32 = 30,747.75/x
  3. Step 3: Cross multiply
    54,621.87x = 75,375.32 × 30,747.75
  4. Step 4: Simplify right side
    54,621.87x = 2,317,621,341.79
  5. Step 5: Solve for x
    x = 2,317,621,341.79/54,621.87
  6. Step 6: Final answer
    x = 42,430.28

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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.