Home / 51,811.05-77,716.58-14,371.05

Finding the Fourth Proportional to 51,811.05, 77,716.58 and 14,371.05

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Solution

The fourth proportional to 51,811.05, 77,716.58 and 14,371.05 is: 21,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,811.05 : 77,716.58 = 14,371.05 : x
  2. Step 2: Convert to fraction form
    51,811.05/77,716.58 = 14,371.05/x
  3. Step 3: Cross multiply
    51,811.05x = 77,716.58 × 14,371.05
  4. Step 4: Simplify right side
    51,811.05x = 1,116,868,785.15
  5. Step 5: Solve for x
    x = 1,116,868,785.15/51,811.05
  6. Step 6: Final answer
    x = 21,556.58

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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.