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Finding the Fourth Proportional to 81,603.44, 112,614.78 and 45,796.30

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Solution

The fourth proportional to 81,603.44, 112,614.78 and 45,796.30 is: 63,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.44 : 112,614.78 = 45,796.30 : x
  2. Step 2: Convert to fraction form
    81,603.44/112,614.78 = 45,796.30/x
  3. Step 3: Cross multiply
    81,603.44x = 112,614.78 × 45,796.30
  4. Step 4: Simplify right side
    81,603.44x = 5,157,340,249.31
  5. Step 5: Solve for x
    x = 5,157,340,249.31/81,603.44
  6. Step 6: Final answer
    x = 63,200.03

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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.