Home / 49,976.25-74,985.09-21,881.80

Finding the Fourth Proportional to 49,976.25, 74,985.09 and 21,881.80

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Solution

The fourth proportional to 49,976.25, 74,985.09 and 21,881.80 is: 32,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,976.25 : 74,985.09 = 21,881.80 : x
  2. Step 2: Convert to fraction form
    49,976.25/74,985.09 = 21,881.80/x
  3. Step 3: Cross multiply
    49,976.25x = 74,985.09 × 21,881.80
  4. Step 4: Simplify right side
    49,976.25x = 1,640,808,742.36
  5. Step 5: Solve for x
    x = 1,640,808,742.36/49,976.25
  6. Step 6: Final answer
    x = 32,831.77

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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.