Home / 83,153.21-124,742.16-30,558.60

Finding the Fourth Proportional to 83,153.21, 124,742.16 and 30,558.60

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Solution

The fourth proportional to 83,153.21, 124,742.16 and 30,558.60 is: 45,842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,153.21 : 124,742.16 = 30,558.60 : x
  2. Step 2: Convert to fraction form
    83,153.21/124,742.16 = 30,558.60/x
  3. Step 3: Cross multiply
    83,153.21x = 124,742.16 × 30,558.60
  4. Step 4: Simplify right side
    83,153.21x = 3,811,945,770.58
  5. Step 5: Solve for x
    x = 3,811,945,770.58/83,153.21
  6. Step 6: Final answer
    x = 45,842.44

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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.