Home / 65,456.31-98,190.11-18,071.42

Finding the Fourth Proportional to 65,456.31, 98,190.11 and 18,071.42

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Solution

The fourth proportional to 65,456.31, 98,190.11 and 18,071.42 is: 27,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,456.31 : 98,190.11 = 18,071.42 : x
  2. Step 2: Convert to fraction form
    65,456.31/98,190.11 = 18,071.42/x
  3. Step 3: Cross multiply
    65,456.31x = 98,190.11 × 18,071.42
  4. Step 4: Simplify right side
    65,456.31x = 1,774,434,271.88
  5. Step 5: Solve for x
    x = 1,774,434,271.88/65,456.31
  6. Step 6: Final answer
    x = 27,108.68

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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.