Home / 54,581.42-75,321.54-30,708.12

Finding the Fourth Proportional to 54,581.42, 75,321.54 and 30,708.12

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Solution

The fourth proportional to 54,581.42, 75,321.54 and 30,708.12 is: 42,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.42 : 75,321.54 = 30,708.12 : x
  2. Step 2: Convert to fraction form
    54,581.42/75,321.54 = 30,708.12/x
  3. Step 3: Cross multiply
    54,581.42x = 75,321.54 × 30,708.12
  4. Step 4: Simplify right side
    54,581.42x = 2,312,982,888.90
  5. Step 5: Solve for x
    x = 2,312,982,888.90/54,581.42
  6. Step 6: Final answer
    x = 42,376.74

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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.