Home / 65,567.40-98,360.70-21,185.64

Finding the Fourth Proportional to 65,567.40, 98,360.70 and 21,185.64

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Solution

The fourth proportional to 65,567.40, 98,360.70 and 21,185.64 is: 31,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,567.40 : 98,360.70 = 21,185.64 : x
  2. Step 2: Convert to fraction form
    65,567.40/98,360.70 = 21,185.64/x
  3. Step 3: Cross multiply
    65,567.40x = 98,360.70 × 21,185.64
  4. Step 4: Simplify right side
    65,567.40x = 2,083,834,380.35
  5. Step 5: Solve for x
    x = 2,083,834,380.35/65,567.40
  6. Step 6: Final answer
    x = 31,781.56

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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.