Home / 49,940.20-68,998.50-49,448.68

Finding the Fourth Proportional to 49,940.20, 68,998.50 and 49,448.68

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Solution

The fourth proportional to 49,940.20, 68,998.50 and 49,448.68 is: 68,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,940.20 : 68,998.50 = 49,448.68 : x
  2. Step 2: Convert to fraction form
    49,940.20/68,998.50 = 49,448.68/x
  3. Step 3: Cross multiply
    49,940.20x = 68,998.50 × 49,448.68
  4. Step 4: Simplify right side
    49,940.20x = 3,411,884,746.98
  5. Step 5: Solve for x
    x = 3,411,884,746.98/49,940.20
  6. Step 6: Final answer
    x = 68,319.40

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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.