Home / 74,288.60-111,433.16-18,884.60

Finding the Fourth Proportional to 74,288.60, 111,433.16 and 18,884.60

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Solution

The fourth proportional to 74,288.60, 111,433.16 and 18,884.60 is: 28,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,288.60 : 111,433.16 = 18,884.60 : x
  2. Step 2: Convert to fraction form
    74,288.60/111,433.16 = 18,884.60/x
  3. Step 3: Cross multiply
    74,288.60x = 111,433.16 × 18,884.60
  4. Step 4: Simplify right side
    74,288.60x = 2,104,370,653.34
  5. Step 5: Solve for x
    x = 2,104,370,653.34/74,288.60
  6. Step 6: Final answer
    x = 28,326.97

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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.