Home / 87,668.76-120,953.34-49,916.28

Finding the Fourth Proportional to 87,668.76, 120,953.34 and 49,916.28

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Solution

The fourth proportional to 87,668.76, 120,953.34 and 49,916.28 is: 68,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,668.76 : 120,953.34 = 49,916.28 : x
  2. Step 2: Convert to fraction form
    87,668.76/120,953.34 = 49,916.28/x
  3. Step 3: Cross multiply
    87,668.76x = 120,953.34 × 49,916.28
  4. Step 4: Simplify right side
    87,668.76x = 6,037,540,786.38
  5. Step 5: Solve for x
    x = 6,037,540,786.38/87,668.76
  6. Step 6: Final answer
    x = 68,867.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.