Home / 53,115.84-73,299.06-31,620.60

Finding the Fourth Proportional to 53,115.84, 73,299.06 and 31,620.60

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Solution

The fourth proportional to 53,115.84, 73,299.06 and 31,620.60 is: 43,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,115.84 : 73,299.06 = 31,620.60 : x
  2. Step 2: Convert to fraction form
    53,115.84/73,299.06 = 31,620.60/x
  3. Step 3: Cross multiply
    53,115.84x = 73,299.06 × 31,620.60
  4. Step 4: Simplify right side
    53,115.84x = 2,317,760,256.64
  5. Step 5: Solve for x
    x = 2,317,760,256.64/53,115.84
  6. Step 6: Final answer
    x = 43,635.95

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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.