Home / 51,955.47-77,926.73-20,790.99

Finding the Fourth Proportional to 51,955.47, 77,926.73 and 20,790.99

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Solution

The fourth proportional to 51,955.47, 77,926.73 and 20,790.99 is: 31,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,955.47 : 77,926.73 = 20,790.99 : x
  2. Step 2: Convert to fraction form
    51,955.47/77,926.73 = 20,790.99/x
  3. Step 3: Cross multiply
    51,955.47x = 77,926.73 × 20,790.99
  4. Step 4: Simplify right side
    51,955.47x = 1,620,173,760.21
  5. Step 5: Solve for x
    x = 1,620,173,760.21/51,955.47
  6. Step 6: Final answer
    x = 31,183.89

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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.