Home / 86,217.46-118,977.89-49,913.87

Finding the Fourth Proportional to 86,217.46, 118,977.89 and 49,913.87

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Solution

The fourth proportional to 86,217.46, 118,977.89 and 49,913.87 is: 68,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.46 : 118,977.89 = 49,913.87 : x
  2. Step 2: Convert to fraction form
    86,217.46/118,977.89 = 49,913.87/x
  3. Step 3: Cross multiply
    86,217.46x = 118,977.89 × 49,913.87
  4. Step 4: Simplify right side
    86,217.46x = 5,938,646,089.88
  5. Step 5: Solve for x
    x = 5,938,646,089.88/86,217.46
  6. Step 6: Final answer
    x = 68,879.86

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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.