Home / 65,104.22-89,683.14-55,512.90

Finding the Fourth Proportional to 65,104.22, 89,683.14 and 55,512.90

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Solution

The fourth proportional to 65,104.22, 89,683.14 and 55,512.90 is: 76,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,104.22 : 89,683.14 = 55,512.90 : x
  2. Step 2: Convert to fraction form
    65,104.22/89,683.14 = 55,512.90/x
  3. Step 3: Cross multiply
    65,104.22x = 89,683.14 × 55,512.90
  4. Step 4: Simplify right side
    65,104.22x = 4,978,571,182.51
  5. Step 5: Solve for x
    x = 4,978,571,182.51/65,104.22
  6. Step 6: Final answer
    x = 76,470.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.