Home / 49,438.89-74,157.71-11,999.25

Finding the Fourth Proportional to 49,438.89, 74,157.71 and 11,999.25

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Solution

The fourth proportional to 49,438.89, 74,157.71 and 11,999.25 is: 17,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,438.89 : 74,157.71 = 11,999.25 : x
  2. Step 2: Convert to fraction form
    49,438.89/74,157.71 = 11,999.25/x
  3. Step 3: Cross multiply
    49,438.89x = 74,157.71 × 11,999.25
  4. Step 4: Simplify right side
    49,438.89x = 889,836,841.72
  5. Step 5: Solve for x
    x = 889,836,841.72/49,438.89
  6. Step 6: Final answer
    x = 17,998.72

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1.5x scale

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.