Home / 66,917.75-100,415.51-29,981.75

Finding the Fourth Proportional to 66,917.75, 100,415.51 and 29,981.75

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Solution

The fourth proportional to 66,917.75, 100,415.51 and 29,981.75 is: 44,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.75 : 100,415.51 = 29,981.75 : x
  2. Step 2: Convert to fraction form
    66,917.75/100,415.51 = 29,981.75/x
  3. Step 3: Cross multiply
    66,917.75x = 100,415.51 × 29,981.75
  4. Step 4: Simplify right side
    66,917.75x = 3,010,632,716.94
  5. Step 5: Solve for x
    x = 3,010,632,716.94/66,917.75
  6. Step 6: Final answer
    x = 44,990.05

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1.5x scale

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.