Home / 84,692.44-126,993.21-28,513.81

Finding the Fourth Proportional to 84,692.44, 126,993.21 and 28,513.81

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Solution

The fourth proportional to 84,692.44, 126,993.21 and 28,513.81 is: 42,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,692.44 : 126,993.21 = 28,513.81 : x
  2. Step 2: Convert to fraction form
    84,692.44/126,993.21 = 28,513.81/x
  3. Step 3: Cross multiply
    84,692.44x = 126,993.21 × 28,513.81
  4. Step 4: Simplify right side
    84,692.44x = 3,621,060,261.23
  5. Step 5: Solve for x
    x = 3,621,060,261.23/84,692.44
  6. Step 6: Final answer
    x = 42,755.41

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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.