Home / 86,340.72-129,504.75-27,193.31

Finding the Fourth Proportional to 86,340.72, 129,504.75 and 27,193.31

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Solution

The fourth proportional to 86,340.72, 129,504.75 and 27,193.31 is: 40,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,340.72 : 129,504.75 = 27,193.31 : x
  2. Step 2: Convert to fraction form
    86,340.72/129,504.75 = 27,193.31/x
  3. Step 3: Cross multiply
    86,340.72x = 129,504.75 × 27,193.31
  4. Step 4: Simplify right side
    86,340.72x = 3,521,662,165.70
  5. Step 5: Solve for x
    x = 3,521,662,165.70/86,340.72
  6. Step 6: Final answer
    x = 40,787.96

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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.