Home / 79,558.48-109,768.24-51,280.52

Finding the Fourth Proportional to 79,558.48, 109,768.24 and 51,280.52

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Solution

The fourth proportional to 79,558.48, 109,768.24 and 51,280.52 is: 70,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,558.48 : 109,768.24 = 51,280.52 : x
  2. Step 2: Convert to fraction form
    79,558.48/109,768.24 = 51,280.52/x
  3. Step 3: Cross multiply
    79,558.48x = 109,768.24 × 51,280.52
  4. Step 4: Simplify right side
    79,558.48x = 5,628,972,426.68
  5. Step 5: Solve for x
    x = 5,628,972,426.68/79,558.48
  6. Step 6: Final answer
    x = 70,752.64

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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.