Home / 83,784.76-115,622.96-47,986.62

Finding the Fourth Proportional to 83,784.76, 115,622.96 and 47,986.62

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Solution

The fourth proportional to 83,784.76, 115,622.96 and 47,986.62 is: 66,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,784.76 : 115,622.96 = 47,986.62 : x
  2. Step 2: Convert to fraction form
    83,784.76/115,622.96 = 47,986.62/x
  3. Step 3: Cross multiply
    83,784.76x = 115,622.96 × 47,986.62
  4. Step 4: Simplify right side
    83,784.76x = 5,548,355,044.80
  5. Step 5: Solve for x
    x = 5,548,355,044.80/83,784.76
  6. Step 6: Final answer
    x = 66,221.53

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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.