Home / 70,914.10-106,372.26-20,999.26

Finding the Fourth Proportional to 70,914.10, 106,372.26 and 20,999.26

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Solution

The fourth proportional to 70,914.10, 106,372.26 and 20,999.26 is: 31,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.10 : 106,372.26 = 20,999.26 : x
  2. Step 2: Convert to fraction form
    70,914.10/106,372.26 = 20,999.26/x
  3. Step 3: Cross multiply
    70,914.10x = 106,372.26 × 20,999.26
  4. Step 4: Simplify right side
    70,914.10x = 2,233,738,744.53
  5. Step 5: Solve for x
    x = 2,233,738,744.53/70,914.10
  6. Step 6: Final answer
    x = 31,499.22

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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.