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Finding the Fourth Proportional to 65,897.07, 98,855.07 and 21,512.85

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Solution

The fourth proportional to 65,897.07, 98,855.07 and 21,512.85 is: 32,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,897.07 : 98,855.07 = 21,512.85 : x
  2. Step 2: Convert to fraction form
    65,897.07/98,855.07 = 21,512.85/x
  3. Step 3: Cross multiply
    65,897.07x = 98,855.07 × 21,512.85
  4. Step 4: Simplify right side
    65,897.07x = 2,126,654,292.65
  5. Step 5: Solve for x
    x = 2,126,654,292.65/65,897.07
  6. Step 6: Final answer
    x = 32,272.36

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1.5x scale

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.