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Finding the Fourth Proportional to 65,730.88, 98,605.20 and 21,343.24

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Solution

The fourth proportional to 65,730.88, 98,605.20 and 21,343.24 is: 32,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,730.88 : 98,605.20 = 21,343.24 : x
  2. Step 2: Convert to fraction form
    65,730.88/98,605.20 = 21,343.24/x
  3. Step 3: Cross multiply
    65,730.88x = 98,605.20 × 21,343.24
  4. Step 4: Simplify right side
    65,730.88x = 2,104,554,448.85
  5. Step 5: Solve for x
    x = 2,104,554,448.85/65,730.88
  6. Step 6: Final answer
    x = 32,017.74

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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.