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Finding the Fourth Proportional to 65,733.40, 98,600.10 and 39,489.40

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Solution

The fourth proportional to 65,733.40, 98,600.10 and 39,489.40 is: 59,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,733.40 : 98,600.10 = 39,489.40 : x
  2. Step 2: Convert to fraction form
    65,733.40/98,600.10 = 39,489.40/x
  3. Step 3: Cross multiply
    65,733.40x = 98,600.10 × 39,489.40
  4. Step 4: Simplify right side
    65,733.40x = 3,893,658,788.94
  5. Step 5: Solve for x
    x = 3,893,658,788.94/65,733.40
  6. Step 6: Final answer
    x = 59,234.10

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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.