Home / 53,893.81-74,372.37-31,232.21

Finding the Fourth Proportional to 53,893.81, 74,372.37 and 31,232.21

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Solution

The fourth proportional to 53,893.81, 74,372.37 and 31,232.21 is: 43,099.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,893.81 : 74,372.37 = 31,232.21 : x
  2. Step 2: Convert to fraction form
    53,893.81/74,372.37 = 31,232.21/x
  3. Step 3: Cross multiply
    53,893.81x = 74,372.37 × 31,232.21
  4. Step 4: Simplify right side
    53,893.81x = 2,322,813,478.04
  5. Step 5: Solve for x
    x = 2,322,813,478.04/53,893.81
  6. Step 6: Final answer
    x = 43,099.82

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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.