Home / 40,476.76-60,705.34-20,745.16

Finding the Fourth Proportional to 40,476.76, 60,705.34 and 20,745.16

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Solution

The fourth proportional to 40,476.76, 60,705.34 and 20,745.16 is: 31,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,476.76 : 60,705.34 = 20,745.16 : x
  2. Step 2: Convert to fraction form
    40,476.76/60,705.34 = 20,745.16/x
  3. Step 3: Cross multiply
    40,476.76x = 60,705.34 × 20,745.16
  4. Step 4: Simplify right side
    40,476.76x = 1,259,341,991.15
  5. Step 5: Solve for x
    x = 1,259,341,991.15/40,476.76
  6. Step 6: Final answer
    x = 31,112.72

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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.