Home / 82,775.40-124,163.10-30,222.60

Finding the Fourth Proportional to 82,775.40, 124,163.10 and 30,222.60

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Solution

The fourth proportional to 82,775.40, 124,163.10 and 30,222.60 is: 45,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,775.40 : 124,163.10 = 30,222.60 : x
  2. Step 2: Convert to fraction form
    82,775.40/124,163.10 = 30,222.60/x
  3. Step 3: Cross multiply
    82,775.40x = 124,163.10 × 30,222.60
  4. Step 4: Simplify right side
    82,775.40x = 3,752,531,706.06
  5. Step 5: Solve for x
    x = 3,752,531,706.06/82,775.40
  6. Step 6: Final answer
    x = 45,333.90

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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.