Home / 86,974.53-130,446.09-39,578.46

Finding the Fourth Proportional to 86,974.53, 130,446.09 and 39,578.46

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Solution

The fourth proportional to 86,974.53, 130,446.09 and 39,578.46 is: 59,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.53 : 130,446.09 = 39,578.46 : x
  2. Step 2: Convert to fraction form
    86,974.53/130,446.09 = 39,578.46/x
  3. Step 3: Cross multiply
    86,974.53x = 130,446.09 × 39,578.46
  4. Step 4: Simplify right side
    86,974.53x = 5,162,855,355.22
  5. Step 5: Solve for x
    x = 5,162,855,355.22/86,974.53
  6. Step 6: Final answer
    x = 59,360.54

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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.