Home / 76,038.62-104,898.41-49,189.78

Finding the Fourth Proportional to 76,038.62, 104,898.41 and 49,189.78

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Solution

The fourth proportional to 76,038.62, 104,898.41 and 49,189.78 is: 67,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,038.62 : 104,898.41 = 49,189.78 : x
  2. Step 2: Convert to fraction form
    76,038.62/104,898.41 = 49,189.78/x
  3. Step 3: Cross multiply
    76,038.62x = 104,898.41 × 49,189.78
  4. Step 4: Simplify right side
    76,038.62x = 5,159,930,095.47
  5. Step 5: Solve for x
    x = 5,159,930,095.47/76,038.62
  6. Step 6: Final answer
    x = 67,859.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.