Home / 87,688.86-131,552.78-40,916.22

Finding the Fourth Proportional to 87,688.86, 131,552.78 and 40,916.22

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Solution

The fourth proportional to 87,688.86, 131,552.78 and 40,916.22 is: 61,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.86 : 131,552.78 = 40,916.22 : x
  2. Step 2: Convert to fraction form
    87,688.86/131,552.78 = 40,916.22/x
  3. Step 3: Cross multiply
    87,688.86x = 131,552.78 × 40,916.22
  4. Step 4: Simplify right side
    87,688.86x = 5,382,642,488.09
  5. Step 5: Solve for x
    x = 5,382,642,488.09/87,688.86
  6. Step 6: Final answer
    x = 61,383.42

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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.