Home / 51,310.78-76,970.25-18,038.31

Finding the Fourth Proportional to 51,310.78, 76,970.25 and 18,038.31

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Solution

The fourth proportional to 51,310.78, 76,970.25 and 18,038.31 is: 27,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,310.78 : 76,970.25 = 18,038.31 : x
  2. Step 2: Convert to fraction form
    51,310.78/76,970.25 = 18,038.31/x
  3. Step 3: Cross multiply
    51,310.78x = 76,970.25 × 18,038.31
  4. Step 4: Simplify right side
    51,310.78x = 1,388,413,230.28
  5. Step 5: Solve for x
    x = 1,388,413,230.28/51,310.78
  6. Step 6: Final answer
    x = 27,058.90

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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.