Home / 51,110.52-76,678.80-19,520.52

Finding the Fourth Proportional to 51,110.52, 76,678.80 and 19,520.52

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Solution

The fourth proportional to 51,110.52, 76,678.80 and 19,520.52 is: 29,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,110.52 : 76,678.80 = 19,520.52 : x
  2. Step 2: Convert to fraction form
    51,110.52/76,678.80 = 19,520.52/x
  3. Step 3: Cross multiply
    51,110.52x = 76,678.80 × 19,520.52
  4. Step 4: Simplify right side
    51,110.52x = 1,496,810,048.98
  5. Step 5: Solve for x
    x = 1,496,810,048.98/51,110.52
  6. Step 6: Final answer
    x = 29,285.75

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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.