Home / 49,890.94-74,869.21-18,726.19

Finding the Fourth Proportional to 49,890.94, 74,869.21 and 18,726.19

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Solution

The fourth proportional to 49,890.94, 74,869.21 and 18,726.19 is: 28,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,890.94 : 74,869.21 = 18,726.19 : x
  2. Step 2: Convert to fraction form
    49,890.94/74,869.21 = 18,726.19/x
  3. Step 3: Cross multiply
    49,890.94x = 74,869.21 × 18,726.19
  4. Step 4: Simplify right side
    49,890.94x = 1,402,014,887.84
  5. Step 5: Solve for x
    x = 1,402,014,887.84/49,890.94
  6. Step 6: Final answer
    x = 28,101.59

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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.