Home / 55,406.21-83,120.27-20,346.17

Finding the Fourth Proportional to 55,406.21, 83,120.27 and 20,346.17

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Solution

The fourth proportional to 55,406.21, 83,120.27 and 20,346.17 is: 30,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,406.21 : 83,120.27 = 20,346.17 : x
  2. Step 2: Convert to fraction form
    55,406.21/83,120.27 = 20,346.17/x
  3. Step 3: Cross multiply
    55,406.21x = 83,120.27 × 20,346.17
  4. Step 4: Simplify right side
    55,406.21x = 1,691,178,626.53
  5. Step 5: Solve for x
    x = 1,691,178,626.53/55,406.21
  6. Step 6: Final answer
    x = 30,523.27

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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.