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Finding the Fourth Proportional to 72,674.10, 108,974.70 and 33,186.60

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Solution

The fourth proportional to 72,674.10, 108,974.70 and 33,186.60 is: 49,763.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.10 : 108,974.70 = 33,186.60 : x
  2. Step 2: Convert to fraction form
    72,674.10/108,974.70 = 33,186.60/x
  3. Step 3: Cross multiply
    72,674.10x = 108,974.70 × 33,186.60
  4. Step 4: Simplify right side
    72,674.10x = 3,616,499,779.02
  5. Step 5: Solve for x
    x = 3,616,499,779.02/72,674.10
  6. Step 6: Final answer
    x = 49,763.26

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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.