Home / 54,135.72-74,708.96-30,263.40

Finding the Fourth Proportional to 54,135.72, 74,708.96 and 30,263.40

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Solution

The fourth proportional to 54,135.72, 74,708.96 and 30,263.40 is: 41,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,135.72 : 74,708.96 = 30,263.40 : x
  2. Step 2: Convert to fraction form
    54,135.72/74,708.96 = 30,263.40/x
  3. Step 3: Cross multiply
    54,135.72x = 74,708.96 × 30,263.40
  4. Step 4: Simplify right side
    54,135.72x = 2,260,947,140.06
  5. Step 5: Solve for x
    x = 2,260,947,140.06/54,135.72
  6. Step 6: Final answer
    x = 41,764.42

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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.