Home / 83,120.20-124,692.61-30,525.58

Finding the Fourth Proportional to 83,120.20, 124,692.61 and 30,525.58

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Solution

The fourth proportional to 83,120.20, 124,692.61 and 30,525.58 is: 45,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.20 : 124,692.61 = 30,525.58 : x
  2. Step 2: Convert to fraction form
    83,120.20/124,692.61 = 30,525.58/x
  3. Step 3: Cross multiply
    83,120.20x = 124,692.61 × 30,525.58
  4. Step 4: Simplify right side
    83,120.20x = 3,806,314,241.96
  5. Step 5: Solve for x
    x = 3,806,314,241.96/83,120.20
  6. Step 6: Final answer
    x = 45,792.89

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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.