Home / 51,864.50-77,779.40-20,266.37

Finding the Fourth Proportional to 51,864.50, 77,779.40 and 20,266.37

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Solution

The fourth proportional to 51,864.50, 77,779.40 and 20,266.37 is: 30,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,864.50 : 77,779.40 = 20,266.37 : x
  2. Step 2: Convert to fraction form
    51,864.50/77,779.40 = 20,266.37/x
  3. Step 3: Cross multiply
    51,864.50x = 77,779.40 × 20,266.37
  4. Step 4: Simplify right side
    51,864.50x = 1,576,306,098.78
  5. Step 5: Solve for x
    x = 1,576,306,098.78/51,864.50
  6. Step 6: Final answer
    x = 30,392.78

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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.