Home / 51,854.11-77,782.70-20,262.89

Finding the Fourth Proportional to 51,854.11, 77,782.70 and 20,262.89

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Solution

The fourth proportional to 51,854.11, 77,782.70 and 20,262.89 is: 30,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,854.11 : 77,782.70 = 20,262.89 : x
  2. Step 2: Convert to fraction form
    51,854.11/77,782.70 = 20,262.89/x
  3. Step 3: Cross multiply
    51,854.11x = 77,782.70 × 20,262.89
  4. Step 4: Simplify right side
    51,854.11x = 1,576,102,425.14
  5. Step 5: Solve for x
    x = 1,576,102,425.14/51,854.11
  6. Step 6: Final answer
    x = 30,394.94

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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.