Home / 49,561.09-74,341.94-12,121.47

Finding the Fourth Proportional to 49,561.09, 74,341.94 and 12,121.47

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Solution

The fourth proportional to 49,561.09, 74,341.94 and 12,121.47 is: 18,182.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,561.09 : 74,341.94 = 12,121.47 : x
  2. Step 2: Convert to fraction form
    49,561.09/74,341.94 = 12,121.47/x
  3. Step 3: Cross multiply
    49,561.09x = 74,341.94 × 12,121.47
  4. Step 4: Simplify right side
    49,561.09x = 901,133,534.84
  5. Step 5: Solve for x
    x = 901,133,534.84/49,561.09
  6. Step 6: Final answer
    x = 18,182.28

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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.