Home / 53,198.10-73,412.91-30,540.78

Finding the Fourth Proportional to 53,198.10, 73,412.91 and 30,540.78

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Solution

The fourth proportional to 53,198.10, 73,412.91 and 30,540.78 is: 42,146.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,198.10 : 73,412.91 = 30,540.78 : x
  2. Step 2: Convert to fraction form
    53,198.10/73,412.91 = 30,540.78/x
  3. Step 3: Cross multiply
    53,198.10x = 73,412.91 × 30,540.78
  4. Step 4: Simplify right side
    53,198.10x = 2,242,087,533.47
  5. Step 5: Solve for x
    x = 2,242,087,533.47/53,198.10
  6. Step 6: Final answer
    x = 42,146.01

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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.