Home / 77,414.76-116,122.32-21,255.64

Finding the Fourth Proportional to 77,414.76, 116,122.32 and 21,255.64

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Solution

The fourth proportional to 77,414.76, 116,122.32 and 21,255.64 is: 31,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,414.76 : 116,122.32 = 21,255.64 : x
  2. Step 2: Convert to fraction form
    77,414.76/116,122.32 = 21,255.64/x
  3. Step 3: Cross multiply
    77,414.76x = 116,122.32 × 21,255.64
  4. Step 4: Simplify right side
    77,414.76x = 2,468,254,229.88
  5. Step 5: Solve for x
    x = 2,468,254,229.88/77,414.76
  6. Step 6: Final answer
    x = 31,883.51

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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.