Home / 53,768.70-80,642.25-51,101.28

Finding the Fourth Proportional to 53,768.70, 80,642.25 and 51,101.28

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Solution

The fourth proportional to 53,768.70, 80,642.25 and 51,101.28 is: 76,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,768.70 : 80,642.25 = 51,101.28 : x
  2. Step 2: Convert to fraction form
    53,768.70/80,642.25 = 51,101.28/x
  3. Step 3: Cross multiply
    53,768.70x = 80,642.25 × 51,101.28
  4. Step 4: Simplify right side
    53,768.70x = 4,120,922,197.08
  5. Step 5: Solve for x
    x = 4,120,922,197.08/53,768.70
  6. Step 6: Final answer
    x = 76,641.66

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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.