Home / 81,057.21-111,858.51-47,074.05

Finding the Fourth Proportional to 81,057.21, 111,858.51 and 47,074.05

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Solution

The fourth proportional to 81,057.21, 111,858.51 and 47,074.05 is: 64,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,057.21 : 111,858.51 = 47,074.05 : x
  2. Step 2: Convert to fraction form
    81,057.21/111,858.51 = 47,074.05/x
  3. Step 3: Cross multiply
    81,057.21x = 111,858.51 × 47,074.05
  4. Step 4: Simplify right side
    81,057.21x = 5,265,633,092.67
  5. Step 5: Solve for x
    x = 5,265,633,092.67/81,057.21
  6. Step 6: Final answer
    x = 64,961.93

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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.