Home / 86,417.97-129,626.79-33,790.55

Finding the Fourth Proportional to 86,417.97, 129,626.79 and 33,790.55

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Solution

The fourth proportional to 86,417.97, 129,626.79 and 33,790.55 is: 50,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,417.97 : 129,626.79 = 33,790.55 : x
  2. Step 2: Convert to fraction form
    86,417.97/129,626.79 = 33,790.55/x
  3. Step 3: Cross multiply
    86,417.97x = 129,626.79 × 33,790.55
  4. Step 4: Simplify right side
    86,417.97x = 4,380,159,880.70
  5. Step 5: Solve for x
    x = 4,380,159,880.70/86,417.97
  6. Step 6: Final answer
    x = 50,685.75

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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.