Home / 49,840.98-74,762.82-12,399.54

Finding the Fourth Proportional to 49,840.98, 74,762.82 and 12,399.54

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Solution

The fourth proportional to 49,840.98, 74,762.82 and 12,399.54 is: 18,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,840.98 : 74,762.82 = 12,399.54 : x
  2. Step 2: Convert to fraction form
    49,840.98/74,762.82 = 12,399.54/x
  3. Step 3: Cross multiply
    49,840.98x = 74,762.82 × 12,399.54
  4. Step 4: Simplify right side
    49,840.98x = 927,024,577.10
  5. Step 5: Solve for x
    x = 927,024,577.10/49,840.98
  6. Step 6: Final answer
    x = 18,599.65

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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.