Home / 81,327.69-112,301.48-51,163.49

Finding the Fourth Proportional to 81,327.69, 112,301.48 and 51,163.49

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Solution

The fourth proportional to 81,327.69, 112,301.48 and 51,163.49 is: 70,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,327.69 : 112,301.48 = 51,163.49 : x
  2. Step 2: Convert to fraction form
    81,327.69/112,301.48 = 51,163.49/x
  3. Step 3: Cross multiply
    81,327.69x = 112,301.48 × 51,163.49
  4. Step 4: Simplify right side
    81,327.69x = 5,745,735,648.97
  5. Step 5: Solve for x
    x = 5,745,735,648.97/81,327.69
  6. Step 6: Final answer
    x = 70,649.19

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1.5x scale

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.