Home / 83,435.74-125,153.66-20,255.96

Finding the Fourth Proportional to 83,435.74, 125,153.66 and 20,255.96

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Solution

The fourth proportional to 83,435.74, 125,153.66 and 20,255.96 is: 30,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,435.74 : 125,153.66 = 20,255.96 : x
  2. Step 2: Convert to fraction form
    83,435.74/125,153.66 = 20,255.96/x
  3. Step 3: Cross multiply
    83,435.74x = 125,153.66 × 20,255.96
  4. Step 4: Simplify right side
    83,435.74x = 2,535,107,530.81
  5. Step 5: Solve for x
    x = 2,535,107,530.81/83,435.74
  6. Step 6: Final answer
    x = 30,383.95

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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.