Home / 83,828.89-115,651.05-47,999.62

Finding the Fourth Proportional to 83,828.89, 115,651.05 and 47,999.62

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Solution

The fourth proportional to 83,828.89, 115,651.05 and 47,999.62 is: 66,220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,828.89 : 115,651.05 = 47,999.62 : x
  2. Step 2: Convert to fraction form
    83,828.89/115,651.05 = 47,999.62/x
  3. Step 3: Cross multiply
    83,828.89x = 115,651.05 × 47,999.62
  4. Step 4: Simplify right side
    83,828.89x = 5,551,206,452.60
  5. Step 5: Solve for x
    x = 5,551,206,452.60/83,828.89
  6. Step 6: Final answer
    x = 66,220.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.