Home / 81,692.85-122,539.37-25,533.25

Finding the Fourth Proportional to 81,692.85, 122,539.37 and 25,533.25

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Solution

The fourth proportional to 81,692.85, 122,539.37 and 25,533.25 is: 38,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,692.85 : 122,539.37 = 25,533.25 : x
  2. Step 2: Convert to fraction form
    81,692.85/122,539.37 = 25,533.25/x
  3. Step 3: Cross multiply
    81,692.85x = 122,539.37 × 25,533.25
  4. Step 4: Simplify right side
    81,692.85x = 3,128,828,369.05
  5. Step 5: Solve for x
    x = 3,128,828,369.05/81,692.85
  6. Step 6: Final answer
    x = 38,299.90

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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.