Home / 65,660.40-98,455.36-20,673.30

Finding the Fourth Proportional to 65,660.40, 98,455.36 and 20,673.30

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Solution

The fourth proportional to 65,660.40, 98,455.36 and 20,673.30 is: 30,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,660.40 : 98,455.36 = 20,673.30 : x
  2. Step 2: Convert to fraction form
    65,660.40/98,455.36 = 20,673.30/x
  3. Step 3: Cross multiply
    65,660.40x = 98,455.36 × 20,673.30
  4. Step 4: Simplify right side
    65,660.40x = 2,035,397,193.89
  5. Step 5: Solve for x
    x = 2,035,397,193.89/65,660.40
  6. Step 6: Final answer
    x = 30,998.85

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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.