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Finding the Fourth Proportional to 47,984.80, 66,249.84 and 30,104.32

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Solution

The fourth proportional to 47,984.80, 66,249.84 and 30,104.32 is: 41,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,984.80 : 66,249.84 = 30,104.32 : x
  2. Step 2: Convert to fraction form
    47,984.80/66,249.84 = 30,104.32/x
  3. Step 3: Cross multiply
    47,984.80x = 66,249.84 × 30,104.32
  4. Step 4: Simplify right side
    47,984.80x = 1,994,406,383.31
  5. Step 5: Solve for x
    x = 1,994,406,383.31/47,984.80
  6. Step 6: Final answer
    x = 41,563.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.