Home / 86,410.09-129,614.93-33,782.57

Finding the Fourth Proportional to 86,410.09, 129,614.93 and 33,782.57

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Solution

The fourth proportional to 86,410.09, 129,614.93 and 33,782.57 is: 50,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,410.09 : 129,614.93 = 33,782.57 : x
  2. Step 2: Convert to fraction form
    86,410.09/129,614.93 = 33,782.57/x
  3. Step 3: Cross multiply
    86,410.09x = 129,614.93 × 33,782.57
  4. Step 4: Simplify right side
    86,410.09x = 4,378,724,628.78
  5. Step 5: Solve for x
    x = 4,378,724,628.78/86,410.09
  6. Step 6: Final answer
    x = 50,673.77

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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.