Home / 49,964.04-68,980.41-31,126.68

Finding the Fourth Proportional to 49,964.04, 68,980.41 and 31,126.68

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Solution

The fourth proportional to 49,964.04, 68,980.41 and 31,126.68 is: 42,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,964.04 : 68,980.41 = 31,126.68 : x
  2. Step 2: Convert to fraction form
    49,964.04/68,980.41 = 31,126.68/x
  3. Step 3: Cross multiply
    49,964.04x = 68,980.41 × 31,126.68
  4. Step 4: Simplify right side
    49,964.04x = 2,147,131,148.34
  5. Step 5: Solve for x
    x = 2,147,131,148.34/49,964.04
  6. Step 6: Final answer
    x = 42,973.53

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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.