Home / 81,027.26-121,457.81-31,093.95

Finding the Fourth Proportional to 81,027.26, 121,457.81 and 31,093.95

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Solution

The fourth proportional to 81,027.26, 121,457.81 and 31,093.95 is: 46,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.26 : 121,457.81 = 31,093.95 : x
  2. Step 2: Convert to fraction form
    81,027.26/121,457.81 = 31,093.95/x
  3. Step 3: Cross multiply
    81,027.26x = 121,457.81 × 31,093.95
  4. Step 4: Simplify right side
    81,027.26x = 3,776,603,604.45
  5. Step 5: Solve for x
    x = 3,776,603,604.45/81,027.26
  6. Step 6: Final answer
    x = 46,609.05

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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.