Home / 66,729.15-100,109.70-22,356.09

Finding the Fourth Proportional to 66,729.15, 100,109.70 and 22,356.09

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Solution

The fourth proportional to 66,729.15, 100,109.70 and 22,356.09 is: 33,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,729.15 : 100,109.70 = 22,356.09 : x
  2. Step 2: Convert to fraction form
    66,729.15/100,109.70 = 22,356.09/x
  3. Step 3: Cross multiply
    66,729.15x = 100,109.70 × 22,356.09
  4. Step 4: Simplify right side
    66,729.15x = 2,238,061,463.07
  5. Step 5: Solve for x
    x = 2,238,061,463.07/66,729.15
  6. Step 6: Final answer
    x = 33,539.49

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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.