Home / 30,066.08-45,101.78-7,879.37

Finding the Fourth Proportional to 30,066.08, 45,101.78 and 7,879.37

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Solution

The fourth proportional to 30,066.08, 45,101.78 and 7,879.37 is: 11,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,066.08 : 45,101.78 = 7,879.37 : x
  2. Step 2: Convert to fraction form
    30,066.08/45,101.78 = 7,879.37/x
  3. Step 3: Cross multiply
    30,066.08x = 45,101.78 × 7,879.37
  4. Step 4: Simplify right side
    30,066.08x = 355,373,572.88
  5. Step 5: Solve for x
    x = 355,373,572.88/30,066.08
  6. Step 6: Final answer
    x = 11,819.75

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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.