Home / 54,579.12-75,313.08-30,714

Finding the Fourth Proportional to 54,579.12, 75,313.08 and 30,714

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Solution

The fourth proportional to 54,579.12, 75,313.08 and 30,714 is: 42,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.12 : 75,313.08 = 30,714 : x
  2. Step 2: Convert to fraction form
    54,579.12/75,313.08 = 30,714/x
  3. Step 3: Cross multiply
    54,579.12x = 75,313.08 × 30,714
  4. Step 4: Simplify right side
    54,579.12x = 2,313,165,939.12
  5. Step 5: Solve for x
    x = 2,313,165,939.12/54,579.12
  6. Step 6: Final answer
    x = 42,381.88

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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.