Home / 87,696.68-131,457.38-40,291.40

Finding the Fourth Proportional to 87,696.68, 131,457.38 and 40,291.40

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Solution

The fourth proportional to 87,696.68, 131,457.38 and 40,291.40 is: 60,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,696.68 : 131,457.38 = 40,291.40 : x
  2. Step 2: Convert to fraction form
    87,696.68/131,457.38 = 40,291.40/x
  3. Step 3: Cross multiply
    87,696.68x = 131,457.38 × 40,291.40
  4. Step 4: Simplify right side
    87,696.68x = 5,296,602,007.72
  5. Step 5: Solve for x
    x = 5,296,602,007.72/87,696.68
  6. Step 6: Final answer
    x = 60,396.84

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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.