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Finding the Fourth Proportional to 66,899.92, 100,330.44 and 43,649.68

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Solution

The fourth proportional to 66,899.92, 100,330.44 and 43,649.68 is: 65,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899.92 : 100,330.44 = 43,649.68 : x
  2. Step 2: Convert to fraction form
    66,899.92/100,330.44 = 43,649.68/x
  3. Step 3: Cross multiply
    66,899.92x = 100,330.44 × 43,649.68
  4. Step 4: Simplify right side
    66,899.92x = 4,379,391,600.26
  5. Step 5: Solve for x
    x = 4,379,391,600.26/66,899.92
  6. Step 6: Final answer
    x = 65,461.84

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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.