Home / 54,580.12-75,314.46-30,715

Finding the Fourth Proportional to 54,580.12, 75,314.46 and 30,715

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Solution

The fourth proportional to 54,580.12, 75,314.46 and 30,715 is: 42,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,580.12 : 75,314.46 = 30,715 : x
  2. Step 2: Convert to fraction form
    54,580.12/75,314.46 = 30,715/x
  3. Step 3: Cross multiply
    54,580.12x = 75,314.46 × 30,715
  4. Step 4: Simplify right side
    54,580.12x = 2,313,283,638.90
  5. Step 5: Solve for x
    x = 2,313,283,638.90/54,580.12
  6. Step 6: Final answer
    x = 42,383.26

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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.