Home / 54,863.35-75,717.59-30,991.56

Finding the Fourth Proportional to 54,863.35, 75,717.59 and 30,991.56

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Solution

The fourth proportional to 54,863.35, 75,717.59 and 30,991.56 is: 42,771.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,863.35 : 75,717.59 = 30,991.56 : x
  2. Step 2: Convert to fraction form
    54,863.35/75,717.59 = 30,991.56/x
  3. Step 3: Cross multiply
    54,863.35x = 75,717.59 × 30,991.56
  4. Step 4: Simplify right side
    54,863.35x = 2,346,606,478.74
  5. Step 5: Solve for x
    x = 2,346,606,478.74/54,863.35
  6. Step 6: Final answer
    x = 42,771.84

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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.