Home / 65,078.72-97,617.60-18,331.28

Finding the Fourth Proportional to 65,078.72, 97,617.60 and 18,331.28

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Solution

The fourth proportional to 65,078.72, 97,617.60 and 18,331.28 is: 27,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,078.72 : 97,617.60 = 18,331.28 : x
  2. Step 2: Convert to fraction form
    65,078.72/97,617.60 = 18,331.28/x
  3. Step 3: Cross multiply
    65,078.72x = 97,617.60 × 18,331.28
  4. Step 4: Simplify right side
    65,078.72x = 1,789,455,558.53
  5. Step 5: Solve for x
    x = 1,789,455,558.53/65,078.72
  6. Step 6: Final answer
    x = 27,496.78

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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.