Home / 54,287.68-74,916.48-30,415.36

Finding the Fourth Proportional to 54,287.68, 74,916.48 and 30,415.36

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Solution

The fourth proportional to 54,287.68, 74,916.48 and 30,415.36 is: 41,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,287.68 : 74,916.48 = 30,415.36 : x
  2. Step 2: Convert to fraction form
    54,287.68/74,916.48 = 30,415.36/x
  3. Step 3: Cross multiply
    54,287.68x = 74,916.48 × 30,415.36
  4. Step 4: Simplify right side
    54,287.68x = 2,278,611,709.13
  5. Step 5: Solve for x
    x = 2,278,611,709.13/54,287.68
  6. Step 6: Final answer
    x = 41,972.91

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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.