Home / 82,922.40-124,513.20-47,930.40

Finding the Fourth Proportional to 82,922.40, 124,513.20 and 47,930.40

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Solution

The fourth proportional to 82,922.40, 124,513.20 and 47,930.40 is: 71,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,922.40 : 124,513.20 = 47,930.40 : x
  2. Step 2: Convert to fraction form
    82,922.40/124,513.20 = 47,930.40/x
  3. Step 3: Cross multiply
    82,922.40x = 124,513.20 × 47,930.40
  4. Step 4: Simplify right side
    82,922.40x = 5,967,967,481.28
  5. Step 5: Solve for x
    x = 5,967,967,481.28/82,922.40
  6. Step 6: Final answer
    x = 71,970.51

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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.