Home / 53,892.40-74,373.36-31,231.43

Finding the Fourth Proportional to 53,892.40, 74,373.36 and 31,231.43

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Solution

The fourth proportional to 53,892.40, 74,373.36 and 31,231.43 is: 43,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,892.40 : 74,373.36 = 31,231.43 : x
  2. Step 2: Convert to fraction form
    53,892.40/74,373.36 = 31,231.43/x
  3. Step 3: Cross multiply
    53,892.40x = 74,373.36 × 31,231.43
  4. Step 4: Simplify right side
    53,892.40x = 2,322,786,386.70
  5. Step 5: Solve for x
    x = 2,322,786,386.70/53,892.40
  6. Step 6: Final answer
    x = 43,100.44

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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.