Home / 89,480.10-133,928.09-65,781.37

Finding the Fourth Proportional to 89,480.10, 133,928.09 and 65,781.37

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Solution

The fourth proportional to 89,480.10, 133,928.09 and 65,781.37 is: 98,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,480.10 : 133,928.09 = 65,781.37 : x
  2. Step 2: Convert to fraction form
    89,480.10/133,928.09 = 65,781.37/x
  3. Step 3: Cross multiply
    89,480.10x = 133,928.09 × 65,781.37
  4. Step 4: Simplify right side
    89,480.10x = 8,809,973,241.68
  5. Step 5: Solve for x
    x = 8,809,973,241.68/89,480.10
  6. Step 6: Final answer
    x = 98,457.35

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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.