Home / 84,986.70-127,220.85-49,821.90

Finding the Fourth Proportional to 84,986.70, 127,220.85 and 49,821.90

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Solution

The fourth proportional to 84,986.70, 127,220.85 and 49,821.90 is: 74,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,986.70 : 127,220.85 = 49,821.90 : x
  2. Step 2: Convert to fraction form
    84,986.70/127,220.85 = 49,821.90/x
  3. Step 3: Cross multiply
    84,986.70x = 127,220.85 × 49,821.90
  4. Step 4: Simplify right side
    84,986.70x = 6,338,384,466.62
  5. Step 5: Solve for x
    x = 6,338,384,466.62/84,986.70
  6. Step 6: Final answer
    x = 74,580.90

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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.