Home / 42,986.75-64,385.35-33,611.81

Finding the Fourth Proportional to 42,986.75, 64,385.35 and 33,611.81

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Solution

The fourth proportional to 42,986.75, 64,385.35 and 33,611.81 is: 50,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986.75 : 64,385.35 = 33,611.81 : x
  2. Step 2: Convert to fraction form
    42,986.75/64,385.35 = 33,611.81/x
  3. Step 3: Cross multiply
    42,986.75x = 64,385.35 × 33,611.81
  4. Step 4: Simplify right side
    42,986.75x = 2,164,107,745.03
  5. Step 5: Solve for x
    x = 2,164,107,745.03/42,986.75
  6. Step 6: Final answer
    x = 50,343.61

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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.