Home / 74,372.16-111,558.96-21,782.64

Finding the Fourth Proportional to 74,372.16, 111,558.96 and 21,782.64

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Solution

The fourth proportional to 74,372.16, 111,558.96 and 21,782.64 is: 32,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,372.16 : 111,558.96 = 21,782.64 : x
  2. Step 2: Convert to fraction form
    74,372.16/111,558.96 = 21,782.64/x
  3. Step 3: Cross multiply
    74,372.16x = 111,558.96 × 21,782.64
  4. Step 4: Simplify right side
    74,372.16x = 2,430,048,664.45
  5. Step 5: Solve for x
    x = 2,430,048,664.45/74,372.16
  6. Step 6: Final answer
    x = 32,674.17

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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.