Home / 40,971.85-61,450.60-11,391.99

Finding the Fourth Proportional to 40,971.85, 61,450.60 and 11,391.99

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Solution

The fourth proportional to 40,971.85, 61,450.60 and 11,391.99 is: 17,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.85 : 61,450.60 = 11,391.99 : x
  2. Step 2: Convert to fraction form
    40,971.85/61,450.60 = 11,391.99/x
  3. Step 3: Cross multiply
    40,971.85x = 61,450.60 × 11,391.99
  4. Step 4: Simplify right side
    40,971.85x = 700,044,728.79
  5. Step 5: Solve for x
    x = 700,044,728.79/40,971.85
  6. Step 6: Final answer
    x = 17,085.99

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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.