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Finding the Fourth Proportional to 60,054.36, 90,083.68 and 20,611.20

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Solution

The fourth proportional to 60,054.36, 90,083.68 and 20,611.20 is: 30,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,054.36 : 90,083.68 = 20,611.20 : x
  2. Step 2: Convert to fraction form
    60,054.36/90,083.68 = 20,611.20/x
  3. Step 3: Cross multiply
    60,054.36x = 90,083.68 × 20,611.20
  4. Step 4: Simplify right side
    60,054.36x = 1,856,732,745.22
  5. Step 5: Solve for x
    x = 1,856,732,745.22/60,054.36
  6. Step 6: Final answer
    x = 30,917.53

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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.