Home / 336,942.72-505,412.64-87,624

Finding the Fourth Proportional to 336,942.72, 505,412.64 and 87,624

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Solution

The fourth proportional to 336,942.72, 505,412.64 and 87,624 is: 131,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,942.72 : 505,412.64 = 87,624 : x
  2. Step 2: Convert to fraction form
    336,942.72/505,412.64 = 87,624/x
  3. Step 3: Cross multiply
    336,942.72x = 505,412.64 × 87,624
  4. Step 4: Simplify right side
    336,942.72x = 44,286,277,167.36
  5. Step 5: Solve for x
    x = 44,286,277,167.36/336,942.72
  6. Step 6: Final answer
    x = 131,435.63

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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.