Home / 82,824.80-124,237.20-20,495.30

Finding the Fourth Proportional to 82,824.80, 124,237.20 and 20,495.30

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Solution

The fourth proportional to 82,824.80, 124,237.20 and 20,495.30 is: 30,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,824.80 : 124,237.20 = 20,495.30 : x
  2. Step 2: Convert to fraction form
    82,824.80/124,237.20 = 20,495.30/x
  3. Step 3: Cross multiply
    82,824.80x = 124,237.20 × 20,495.30
  4. Step 4: Simplify right side
    82,824.80x = 2,546,278,685.16
  5. Step 5: Solve for x
    x = 2,546,278,685.16/82,824.80
  6. Step 6: Final answer
    x = 30,742.95

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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.