Home / 54,340.79-74,990.29-30,467.46

Finding the Fourth Proportional to 54,340.79, 74,990.29 and 30,467.46

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Solution

The fourth proportional to 54,340.79, 74,990.29 and 30,467.46 is: 42,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,340.79 : 74,990.29 = 30,467.46 : x
  2. Step 2: Convert to fraction form
    54,340.79/74,990.29 = 30,467.46/x
  3. Step 3: Cross multiply
    54,340.79x = 74,990.29 × 30,467.46
  4. Step 4: Simplify right side
    54,340.79x = 2,284,763,508.63
  5. Step 5: Solve for x
    x = 2,284,763,508.63/54,340.79
  6. Step 6: Final answer
    x = 42,045.09

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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.