Home / 51,512.55-71,083.89-28,540.84

Finding the Fourth Proportional to 51,512.55, 71,083.89 and 28,540.84

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Solution

The fourth proportional to 51,512.55, 71,083.89 and 28,540.84 is: 39,384.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,512.55 : 71,083.89 = 28,540.84 : x
  2. Step 2: Convert to fraction form
    51,512.55/71,083.89 = 28,540.84/x
  3. Step 3: Cross multiply
    51,512.55x = 71,083.89 × 28,540.84
  4. Step 4: Simplify right side
    51,512.55x = 2,028,793,931.07
  5. Step 5: Solve for x
    x = 2,028,793,931.07/51,512.55
  6. Step 6: Final answer
    x = 39,384.46

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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.