Home / 54,172.02-74,727.30-31,508.46

Finding the Fourth Proportional to 54,172.02, 74,727.30 and 31,508.46

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Solution

The fourth proportional to 54,172.02, 74,727.30 and 31,508.46 is: 43,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.02 : 74,727.30 = 31,508.46 : x
  2. Step 2: Convert to fraction form
    54,172.02/74,727.30 = 31,508.46/x
  3. Step 3: Cross multiply
    54,172.02x = 74,727.30 × 31,508.46
  4. Step 4: Simplify right side
    54,172.02x = 2,354,542,142.96
  5. Step 5: Solve for x
    x = 2,354,542,142.96/54,172.02
  6. Step 6: Final answer
    x = 43,464.17

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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.