Home / 81,193.05-112,043.39-45,383.69

Finding the Fourth Proportional to 81,193.05, 112,043.39 and 45,383.69

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Solution

The fourth proportional to 81,193.05, 112,043.39 and 45,383.69 is: 62,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.05 : 112,043.39 = 45,383.69 : x
  2. Step 2: Convert to fraction form
    81,193.05/112,043.39 = 45,383.69/x
  3. Step 3: Cross multiply
    81,193.05x = 112,043.39 × 45,383.69
  4. Step 4: Simplify right side
    81,193.05x = 5,084,942,531.50
  5. Step 5: Solve for x
    x = 5,084,942,531.50/81,193.05
  6. Step 6: Final answer
    x = 62,627.81

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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.