Home / 53,948.60-80,918.56-18,406.88

Finding the Fourth Proportional to 53,948.60, 80,918.56 and 18,406.88

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Solution

The fourth proportional to 53,948.60, 80,918.56 and 18,406.88 is: 27,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,948.60 : 80,918.56 = 18,406.88 : x
  2. Step 2: Convert to fraction form
    53,948.60/80,918.56 = 18,406.88/x
  3. Step 3: Cross multiply
    53,948.60x = 80,918.56 × 18,406.88
  4. Step 4: Simplify right side
    53,948.60x = 1,489,458,223.69
  5. Step 5: Solve for x
    x = 1,489,458,223.69/53,948.60
  6. Step 6: Final answer
    x = 27,608.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.