Home / 54,815.40-82,223.10-49,890.60

Finding the Fourth Proportional to 54,815.40, 82,223.10 and 49,890.60

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Solution

The fourth proportional to 54,815.40, 82,223.10 and 49,890.60 is: 74,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815.40 : 82,223.10 = 49,890.60 : x
  2. Step 2: Convert to fraction form
    54,815.40/82,223.10 = 49,890.60/x
  3. Step 3: Cross multiply
    54,815.40x = 82,223.10 × 49,890.60
  4. Step 4: Simplify right side
    54,815.40x = 4,102,159,792.86
  5. Step 5: Solve for x
    x = 4,102,159,792.86/54,815.40
  6. Step 6: Final answer
    x = 74,835.90

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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.