Home / 353,629.06-530,438.39-87,389.56

Finding the Fourth Proportional to 353,629.06, 530,438.39 and 87,389.56

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Solution

The fourth proportional to 353,629.06, 530,438.39 and 87,389.56 is: 131,083.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,629.06 : 530,438.39 = 87,389.56 : x
  2. Step 2: Convert to fraction form
    353,629.06/530,438.39 = 87,389.56/x
  3. Step 3: Cross multiply
    353,629.06x = 530,438.39 × 87,389.56
  4. Step 4: Simplify right side
    353,629.06x = 46,354,778,063.02
  5. Step 5: Solve for x
    x = 46,354,778,063.02/353,629.06
  6. Step 6: Final answer
    x = 131,083.06

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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.