Home / 86,169.68-129,323.64-44,628.56

Finding the Fourth Proportional to 86,169.68, 129,323.64 and 44,628.56

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Solution

The fourth proportional to 86,169.68, 129,323.64 and 44,628.56 is: 66,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,169.68 : 129,323.64 = 44,628.56 : x
  2. Step 2: Convert to fraction form
    86,169.68/129,323.64 = 44,628.56/x
  3. Step 3: Cross multiply
    86,169.68x = 129,323.64 × 44,628.56
  4. Step 4: Simplify right side
    86,169.68x = 5,771,527,827.16
  5. Step 5: Solve for x
    x = 5,771,527,827.16/86,169.68
  6. Step 6: Final answer
    x = 66,978.64

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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.