Home / 74,982.40-112,520.07-30,609.10

Finding the Fourth Proportional to 74,982.40, 112,520.07 and 30,609.10

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Solution

The fourth proportional to 74,982.40, 112,520.07 and 30,609.10 is: 45,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,982.40 : 112,520.07 = 30,609.10 : x
  2. Step 2: Convert to fraction form
    74,982.40/112,520.07 = 30,609.10/x
  3. Step 3: Cross multiply
    74,982.40x = 112,520.07 × 30,609.10
  4. Step 4: Simplify right side
    74,982.40x = 3,444,138,074.64
  5. Step 5: Solve for x
    x = 3,444,138,074.64/74,982.40
  6. Step 6: Final answer
    x = 45,932.62

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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.