Home / 87,457.50-131,213.92-31,296.36

Finding the Fourth Proportional to 87,457.50, 131,213.92 and 31,296.36

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Solution

The fourth proportional to 87,457.50, 131,213.92 and 31,296.36 is: 46,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457.50 : 131,213.92 = 31,296.36 : x
  2. Step 2: Convert to fraction form
    87,457.50/131,213.92 = 31,296.36/x
  3. Step 3: Cross multiply
    87,457.50x = 131,213.92 × 31,296.36
  4. Step 4: Simplify right side
    87,457.50x = 4,106,518,077.33
  5. Step 5: Solve for x
    x = 4,106,518,077.33/87,457.50
  6. Step 6: Final answer
    x = 46,954.44

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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.