Home / 65,701.45-98,567.84-21,328.30

Finding the Fourth Proportional to 65,701.45, 98,567.84 and 21,328.30

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Solution

The fourth proportional to 65,701.45, 98,567.84 and 21,328.30 is: 31,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.45 : 98,567.84 = 21,328.30 : x
  2. Step 2: Convert to fraction form
    65,701.45/98,567.84 = 21,328.30/x
  3. Step 3: Cross multiply
    65,701.45x = 98,567.84 × 21,328.30
  4. Step 4: Simplify right side
    65,701.45x = 2,102,284,355.23
  5. Step 5: Solve for x
    x = 2,102,284,355.23/65,701.45
  6. Step 6: Final answer
    x = 31,997.53

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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.