Home / 61,780.20-92,635.74-20,223.72

Finding the Fourth Proportional to 61,780.20, 92,635.74 and 20,223.72

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Solution

The fourth proportional to 61,780.20, 92,635.74 and 20,223.72 is: 30,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,780.20 : 92,635.74 = 20,223.72 : x
  2. Step 2: Convert to fraction form
    61,780.20/92,635.74 = 20,223.72/x
  3. Step 3: Cross multiply
    61,780.20x = 92,635.74 × 20,223.72
  4. Step 4: Simplify right side
    61,780.20x = 1,873,439,267.75
  5. Step 5: Solve for x
    x = 1,873,439,267.75/61,780.20
  6. Step 6: Final answer
    x = 30,324.27

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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.