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Finding the Fourth Proportional to 51,414.41, 70,955.51 and 28,755.51

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Solution

The fourth proportional to 51,414.41, 70,955.51 and 28,755.51 is: 39,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,414.41 : 70,955.51 = 28,755.51 : x
  2. Step 2: Convert to fraction form
    51,414.41/70,955.51 = 28,755.51/x
  3. Step 3: Cross multiply
    51,414.41x = 70,955.51 × 28,755.51
  4. Step 4: Simplify right side
    51,414.41x = 2,040,361,733.58
  5. Step 5: Solve for x
    x = 2,040,361,733.58/51,414.41
  6. Step 6: Final answer
    x = 39,684.63

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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.