Home / 83,425.04-115,137.60-47,606.80

Finding the Fourth Proportional to 83,425.04, 115,137.60 and 47,606.80

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Solution

The fourth proportional to 83,425.04, 115,137.60 and 47,606.80 is: 65,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.04 : 115,137.60 = 47,606.80 : x
  2. Step 2: Convert to fraction form
    83,425.04/115,137.60 = 47,606.80/x
  3. Step 3: Cross multiply
    83,425.04x = 115,137.60 × 47,606.80
  4. Step 4: Simplify right side
    83,425.04x = 5,481,332,695.68
  5. Step 5: Solve for x
    x = 5,481,332,695.68/83,425.04
  6. Step 6: Final answer
    x = 65,703.69

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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.