Home / 66,485.74-99,729.46-22,112.50

Finding the Fourth Proportional to 66,485.74, 99,729.46 and 22,112.50

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Solution

The fourth proportional to 66,485.74, 99,729.46 and 22,112.50 is: 33,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.74 : 99,729.46 = 22,112.50 : x
  2. Step 2: Convert to fraction form
    66,485.74/99,729.46 = 22,112.50/x
  3. Step 3: Cross multiply
    66,485.74x = 99,729.46 × 22,112.50
  4. Step 4: Simplify right side
    66,485.74x = 2,205,267,684.25
  5. Step 5: Solve for x
    x = 2,205,267,684.25/66,485.74
  6. Step 6: Final answer
    x = 33,169.03

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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.