Home / 51,938.07-77,913.36-20,348.61

Finding the Fourth Proportional to 51,938.07, 77,913.36 and 20,348.61

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Solution

The fourth proportional to 51,938.07, 77,913.36 and 20,348.61 is: 30,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,938.07 : 77,913.36 = 20,348.61 : x
  2. Step 2: Convert to fraction form
    51,938.07/77,913.36 = 20,348.61/x
  3. Step 3: Cross multiply
    51,938.07x = 77,913.36 × 20,348.61
  4. Step 4: Simplify right side
    51,938.07x = 1,585,428,576.43
  5. Step 5: Solve for x
    x = 1,585,428,576.43/51,938.07
  6. Step 6: Final answer
    x = 30,525.37

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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.