Home / 53,203.44-79,806.63-13,220.81

Finding the Fourth Proportional to 53,203.44, 79,806.63 and 13,220.81

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Solution

The fourth proportional to 53,203.44, 79,806.63 and 13,220.81 is: 19,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,203.44 : 79,806.63 = 13,220.81 : x
  2. Step 2: Convert to fraction form
    53,203.44/79,806.63 = 13,220.81/x
  3. Step 3: Cross multiply
    53,203.44x = 79,806.63 × 13,220.81
  4. Step 4: Simplify right side
    53,203.44x = 1,055,108,092.15
  5. Step 5: Solve for x
    x = 1,055,108,092.15/53,203.44
  6. Step 6: Final answer
    x = 19,831.58

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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.