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Finding the Fourth Proportional to 30,054.78, 45,083.25 and 8,995.05

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Solution

The fourth proportional to 30,054.78, 45,083.25 and 8,995.05 is: 13,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.78 : 45,083.25 = 8,995.05 : x
  2. Step 2: Convert to fraction form
    30,054.78/45,083.25 = 8,995.05/x
  3. Step 3: Cross multiply
    30,054.78x = 45,083.25 × 8,995.05
  4. Step 4: Simplify right side
    30,054.78x = 405,526,087.91
  5. Step 5: Solve for x
    x = 405,526,087.91/30,054.78
  6. Step 6: Final answer
    x = 13,492.90

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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.