Home / 65,104.19-97,663.50-20,720.66

Finding the Fourth Proportional to 65,104.19, 97,663.50 and 20,720.66

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Solution

The fourth proportional to 65,104.19, 97,663.50 and 20,720.66 is: 31,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,104.19 : 97,663.50 = 20,720.66 : x
  2. Step 2: Convert to fraction form
    65,104.19/97,663.50 = 20,720.66/x
  3. Step 3: Cross multiply
    65,104.19x = 97,663.50 × 20,720.66
  4. Step 4: Simplify right side
    65,104.19x = 2,023,652,177.91
  5. Step 5: Solve for x
    x = 2,023,652,177.91/65,104.19
  6. Step 6: Final answer
    x = 31,083.29

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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.