Home / 65,840.52-98,771.08-21,456.96

Finding the Fourth Proportional to 65,840.52, 98,771.08 and 21,456.96

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Solution

The fourth proportional to 65,840.52, 98,771.08 and 21,456.96 is: 32,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840.52 : 98,771.08 = 21,456.96 : x
  2. Step 2: Convert to fraction form
    65,840.52/98,771.08 = 21,456.96/x
  3. Step 3: Cross multiply
    65,840.52x = 98,771.08 × 21,456.96
  4. Step 4: Simplify right side
    65,840.52x = 2,119,327,112.72
  5. Step 5: Solve for x
    x = 2,119,327,112.72/65,840.52
  6. Step 6: Final answer
    x = 32,188.80

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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.