Home / 74,245.36-111,357.24-21,640.72

Finding the Fourth Proportional to 74,245.36, 111,357.24 and 21,640.72

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Solution

The fourth proportional to 74,245.36, 111,357.24 and 21,640.72 is: 32,457.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.36 : 111,357.24 = 21,640.72 : x
  2. Step 2: Convert to fraction form
    74,245.36/111,357.24 = 21,640.72/x
  3. Step 3: Cross multiply
    74,245.36x = 111,357.24 × 21,640.72
  4. Step 4: Simplify right side
    74,245.36x = 2,409,850,850.81
  5. Step 5: Solve for x
    x = 2,409,850,850.81/74,245.36
  6. Step 6: Final answer
    x = 32,457.93

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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.