Home / 54,178.78-74,736.62-31,515.22

Finding the Fourth Proportional to 54,178.78, 74,736.62 and 31,515.22

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Solution

The fourth proportional to 54,178.78, 74,736.62 and 31,515.22 is: 43,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.78 : 74,736.62 = 31,515.22 : x
  2. Step 2: Convert to fraction form
    54,178.78/74,736.62 = 31,515.22/x
  3. Step 3: Cross multiply
    54,178.78x = 74,736.62 × 31,515.22
  4. Step 4: Simplify right side
    54,178.78x = 2,355,341,021.36
  5. Step 5: Solve for x
    x = 2,355,341,021.36/54,178.78
  6. Step 6: Final answer
    x = 43,473.50

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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.