Home / 74,409.20-111,516.60-29,999.60

Finding the Fourth Proportional to 74,409.20, 111,516.60 and 29,999.60

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Solution

The fourth proportional to 74,409.20, 111,516.60 and 29,999.60 is: 44,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,409.20 : 111,516.60 = 29,999.60 : x
  2. Step 2: Convert to fraction form
    74,409.20/111,516.60 = 29,999.60/x
  3. Step 3: Cross multiply
    74,409.20x = 111,516.60 × 29,999.60
  4. Step 4: Simplify right side
    74,409.20x = 3,345,453,393.36
  5. Step 5: Solve for x
    x = 3,345,453,393.36/74,409.20
  6. Step 6: Final answer
    x = 44,960.21

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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.