Home / 86,389.16-129,530.29-33,736.73

Finding the Fourth Proportional to 86,389.16, 129,530.29 and 33,736.73

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Solution

The fourth proportional to 86,389.16, 129,530.29 and 33,736.73 is: 50,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.16 : 129,530.29 = 33,736.73 : x
  2. Step 2: Convert to fraction form
    86,389.16/129,530.29 = 33,736.73/x
  3. Step 3: Cross multiply
    86,389.16x = 129,530.29 × 33,736.73
  4. Step 4: Simplify right side
    86,389.16x = 4,369,928,871.28
  5. Step 5: Solve for x
    x = 4,369,928,871.28/86,389.16
  6. Step 6: Final answer
    x = 50,584.22

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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.