Home / 51,980.11-77,969.99-12,537.22

Finding the Fourth Proportional to 51,980.11, 77,969.99 and 12,537.22

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Solution

The fourth proportional to 51,980.11, 77,969.99 and 12,537.22 is: 18,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,980.11 : 77,969.99 = 12,537.22 : x
  2. Step 2: Convert to fraction form
    51,980.11/77,969.99 = 12,537.22/x
  3. Step 3: Cross multiply
    51,980.11x = 77,969.99 × 12,537.22
  4. Step 4: Simplify right side
    51,980.11x = 977,526,918.03
  5. Step 5: Solve for x
    x = 977,526,918.03/51,980.11
  6. Step 6: Final answer
    x = 18,805.79

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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.