Home / 53,845.60-74,306.28-31,489.60

Finding the Fourth Proportional to 53,845.60, 74,306.28 and 31,489.60

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Solution

The fourth proportional to 53,845.60, 74,306.28 and 31,489.60 is: 43,455.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,845.60 : 74,306.28 = 31,489.60 : x
  2. Step 2: Convert to fraction form
    53,845.60/74,306.28 = 31,489.60/x
  3. Step 3: Cross multiply
    53,845.60x = 74,306.28 × 31,489.60
  4. Step 4: Simplify right side
    53,845.60x = 2,339,875,034.69
  5. Step 5: Solve for x
    x = 2,339,875,034.69/53,845.60
  6. Step 6: Final answer
    x = 43,455.27

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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.