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Finding the Fourth Proportional to 66,575.80, 99,849.30 and 29,135.80

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Solution

The fourth proportional to 66,575.80, 99,849.30 and 29,135.80 is: 43,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.80 : 99,849.30 = 29,135.80 : x
  2. Step 2: Convert to fraction form
    66,575.80/99,849.30 = 29,135.80/x
  3. Step 3: Cross multiply
    66,575.80x = 99,849.30 × 29,135.80
  4. Step 4: Simplify right side
    66,575.80x = 2,909,189,234.94
  5. Step 5: Solve for x
    x = 2,909,189,234.94/66,575.80
  6. Step 6: Final answer
    x = 43,697.40

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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.