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Finding the Fourth Proportional to 65,675.40, 98,537.40 and 21,303.60

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Solution

The fourth proportional to 65,675.40, 98,537.40 and 21,303.60 is: 31,963.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,675.40 : 98,537.40 = 21,303.60 : x
  2. Step 2: Convert to fraction form
    65,675.40/98,537.40 = 21,303.60/x
  3. Step 3: Cross multiply
    65,675.40x = 98,537.40 × 21,303.60
  4. Step 4: Simplify right side
    65,675.40x = 2,099,201,354.64
  5. Step 5: Solve for x
    x = 2,099,201,354.64/65,675.40
  6. Step 6: Final answer
    x = 31,963.28

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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.