Home / 86,415.57-129,619.04-33,834.69

Finding the Fourth Proportional to 86,415.57, 129,619.04 and 33,834.69

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Solution

The fourth proportional to 86,415.57, 129,619.04 and 33,834.69 is: 50,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,415.57 : 129,619.04 = 33,834.69 : x
  2. Step 2: Convert to fraction form
    86,415.57/129,619.04 = 33,834.69/x
  3. Step 3: Cross multiply
    86,415.57x = 129,619.04 × 33,834.69
  4. Step 4: Simplify right side
    86,415.57x = 4,385,619,867.32
  5. Step 5: Solve for x
    x = 4,385,619,867.32/86,415.57
  6. Step 6: Final answer
    x = 50,750.34

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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.