Home / 66,917.47-100,381.67-33,620.35

Finding the Fourth Proportional to 66,917.47, 100,381.67 and 33,620.35

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Solution

The fourth proportional to 66,917.47, 100,381.67 and 33,620.35 is: 50,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.47 : 100,381.67 = 33,620.35 : x
  2. Step 2: Convert to fraction form
    66,917.47/100,381.67 = 33,620.35/x
  3. Step 3: Cross multiply
    66,917.47x = 100,381.67 × 33,620.35
  4. Step 4: Simplify right side
    66,917.47x = 3,374,866,878.98
  5. Step 5: Solve for x
    x = 3,374,866,878.98/66,917.47
  6. Step 6: Final answer
    x = 50,433.27

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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.