Home / 84,015.21-115,781.50-60,100.37

Finding the Fourth Proportional to 84,015.21, 115,781.50 and 60,100.37

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Solution

The fourth proportional to 84,015.21, 115,781.50 and 60,100.37 is: 82,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015.21 : 115,781.50 = 60,100.37 : x
  2. Step 2: Convert to fraction form
    84,015.21/115,781.50 = 60,100.37/x
  3. Step 3: Cross multiply
    84,015.21x = 115,781.50 × 60,100.37
  4. Step 4: Simplify right side
    84,015.21x = 6,958,510,989.16
  5. Step 5: Solve for x
    x = 6,958,510,989.16/84,015.21
  6. Step 6: Final answer
    x = 82,824.42

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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.