Home / 49,973.59-74,981.16-21,879.18

Finding the Fourth Proportional to 49,973.59, 74,981.16 and 21,879.18

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Solution

The fourth proportional to 49,973.59, 74,981.16 and 21,879.18 is: 32,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,973.59 : 74,981.16 = 21,879.18 : x
  2. Step 2: Convert to fraction form
    49,973.59/74,981.16 = 21,879.18/x
  3. Step 3: Cross multiply
    49,973.59x = 74,981.16 × 21,879.18
  4. Step 4: Simplify right side
    49,973.59x = 1,640,525,811.95
  5. Step 5: Solve for x
    x = 1,640,525,811.95/49,973.59
  6. Step 6: Final answer
    x = 32,827.86

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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.