Home / 54,039.18-74,589.75-31,383.30

Finding the Fourth Proportional to 54,039.18, 74,589.75 and 31,383.30

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Solution

The fourth proportional to 54,039.18, 74,589.75 and 31,383.30 is: 43,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,039.18 : 74,589.75 = 31,383.30 : x
  2. Step 2: Convert to fraction form
    54,039.18/74,589.75 = 31,383.30/x
  3. Step 3: Cross multiply
    54,039.18x = 74,589.75 × 31,383.30
  4. Step 4: Simplify right side
    54,039.18x = 2,340,872,501.18
  5. Step 5: Solve for x
    x = 2,340,872,501.18/54,039.18
  6. Step 6: Final answer
    x = 43,318.06

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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.