Home / 86,458.20-129,698.64-33,860.85

Finding the Fourth Proportional to 86,458.20, 129,698.64 and 33,860.85

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Solution

The fourth proportional to 86,458.20, 129,698.64 and 33,860.85 is: 50,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,458.20 : 129,698.64 = 33,860.85 : x
  2. Step 2: Convert to fraction form
    86,458.20/129,698.64 = 33,860.85/x
  3. Step 3: Cross multiply
    86,458.20x = 129,698.64 × 33,860.85
  4. Step 4: Simplify right side
    86,458.20x = 4,391,706,194.24
  5. Step 5: Solve for x
    x = 4,391,706,194.24/86,458.20
  6. Step 6: Final answer
    x = 50,795.72

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1.5x scale

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.