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Finding the Fourth Proportional to 66,896.30, 100,344.45 and 63,615.80

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Solution

The fourth proportional to 66,896.30, 100,344.45 and 63,615.80 is: 95,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,896.30 : 100,344.45 = 63,615.80 : x
  2. Step 2: Convert to fraction form
    66,896.30/100,344.45 = 63,615.80/x
  3. Step 3: Cross multiply
    66,896.30x = 100,344.45 × 63,615.80
  4. Step 4: Simplify right side
    66,896.30x = 6,383,492,462.31
  5. Step 5: Solve for x
    x = 6,383,492,462.31/66,896.30
  6. Step 6: Final answer
    x = 95,423.70

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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.