Home / 51,029.31-70,414.93-28,369.28

Finding the Fourth Proportional to 51,029.31, 70,414.93 and 28,369.28

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Solution

The fourth proportional to 51,029.31, 70,414.93 and 28,369.28 is: 39,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,029.31 : 70,414.93 = 28,369.28 : x
  2. Step 2: Convert to fraction form
    51,029.31/70,414.93 = 28,369.28/x
  3. Step 3: Cross multiply
    51,029.31x = 70,414.93 × 28,369.28
  4. Step 4: Simplify right side
    51,029.31x = 1,997,620,865.35
  5. Step 5: Solve for x
    x = 1,997,620,865.35/51,029.31
  6. Step 6: Final answer
    x = 39,146.54

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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.