Home / 86,281.33-129,415.78-27,133.92

Finding the Fourth Proportional to 86,281.33, 129,415.78 and 27,133.92

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Solution

The fourth proportional to 86,281.33, 129,415.78 and 27,133.92 is: 40,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,281.33 : 129,415.78 = 27,133.92 : x
  2. Step 2: Convert to fraction form
    86,281.33/129,415.78 = 27,133.92/x
  3. Step 3: Cross multiply
    86,281.33x = 129,415.78 × 27,133.92
  4. Step 4: Simplify right side
    86,281.33x = 3,511,557,421.26
  5. Step 5: Solve for x
    x = 3,511,557,421.26/86,281.33
  6. Step 6: Final answer
    x = 40,698.93

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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.