Home / 87,802.65-131,704.31-21,242.67

Finding the Fourth Proportional to 87,802.65, 131,704.31 and 21,242.67

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Solution

The fourth proportional to 87,802.65, 131,704.31 and 21,242.67 is: 31,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,802.65 : 131,704.31 = 21,242.67 : x
  2. Step 2: Convert to fraction form
    87,802.65/131,704.31 = 21,242.67/x
  3. Step 3: Cross multiply
    87,802.65x = 131,704.31 × 21,242.67
  4. Step 4: Simplify right side
    87,802.65x = 2,797,751,248.01
  5. Step 5: Solve for x
    x = 2,797,751,248.01/87,802.65
  6. Step 6: Final answer
    x = 31,864.09

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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.