Home / 49,420.74-74,131.26-11,980.67

Finding the Fourth Proportional to 49,420.74, 74,131.26 and 11,980.67

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Solution

The fourth proportional to 49,420.74, 74,131.26 and 11,980.67 is: 17,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,420.74 : 74,131.26 = 11,980.67 : x
  2. Step 2: Convert to fraction form
    49,420.74/74,131.26 = 11,980.67/x
  3. Step 3: Cross multiply
    49,420.74x = 74,131.26 × 11,980.67
  4. Step 4: Simplify right side
    49,420.74x = 888,141,792.09
  5. Step 5: Solve for x
    x = 888,141,792.09/49,420.74
  6. Step 6: Final answer
    x = 17,971.03

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1.5x scale

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.