Home / 86,857.56-130,305.47-49,435.25

Finding the Fourth Proportional to 86,857.56, 130,305.47 and 49,435.25

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Solution

The fourth proportional to 86,857.56, 130,305.47 and 49,435.25 is: 74,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.56 : 130,305.47 = 49,435.25 : x
  2. Step 2: Convert to fraction form
    86,857.56/130,305.47 = 49,435.25/x
  3. Step 3: Cross multiply
    86,857.56x = 130,305.47 × 49,435.25
  4. Step 4: Simplify right side
    86,857.56x = 6,441,682,587.11
  5. Step 5: Solve for x
    x = 6,441,682,587.11/86,857.56
  6. Step 6: Final answer
    x = 74,163.75

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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.