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Finding the Fourth Proportional to 86,737.30, 130,109.55 and 27,571.30

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Solution

The fourth proportional to 86,737.30, 130,109.55 and 27,571.30 is: 41,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,737.30 : 130,109.55 = 27,571.30 : x
  2. Step 2: Convert to fraction form
    86,737.30/130,109.55 = 27,571.30/x
  3. Step 3: Cross multiply
    86,737.30x = 130,109.55 × 27,571.30
  4. Step 4: Simplify right side
    86,737.30x = 3,587,289,435.92
  5. Step 5: Solve for x
    x = 3,587,289,435.92/86,737.30
  6. Step 6: Final answer
    x = 41,358.09

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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.