Home / 51,765.66-77,651.75-13,814.21

Finding the Fourth Proportional to 51,765.66, 77,651.75 and 13,814.21

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Solution

The fourth proportional to 51,765.66, 77,651.75 and 13,814.21 is: 20,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,765.66 : 77,651.75 = 13,814.21 : x
  2. Step 2: Convert to fraction form
    51,765.66/77,651.75 = 13,814.21/x
  3. Step 3: Cross multiply
    51,765.66x = 77,651.75 × 13,814.21
  4. Step 4: Simplify right side
    51,765.66x = 1,072,697,810.03
  5. Step 5: Solve for x
    x = 1,072,697,810.03/51,765.66
  6. Step 6: Final answer
    x = 20,722.19

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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.