Home / 65,331.16-97,991.42-20,945.96

Finding the Fourth Proportional to 65,331.16, 97,991.42 and 20,945.96

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Solution

The fourth proportional to 65,331.16, 97,991.42 and 20,945.96 is: 31,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,331.16 : 97,991.42 = 20,945.96 : x
  2. Step 2: Convert to fraction form
    65,331.16/97,991.42 = 20,945.96/x
  3. Step 3: Cross multiply
    65,331.16x = 97,991.42 × 20,945.96
  4. Step 4: Simplify right side
    65,331.16x = 2,052,524,363.66
  5. Step 5: Solve for x
    x = 2,052,524,363.66/65,331.16
  6. Step 6: Final answer
    x = 31,417.23

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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.