Home / 66,629.12-99,971.37-29,169.90

Finding the Fourth Proportional to 66,629.12, 99,971.37 and 29,169.90

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Solution

The fourth proportional to 66,629.12, 99,971.37 and 29,169.90 is: 43,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,629.12 : 99,971.37 = 29,169.90 : x
  2. Step 2: Convert to fraction form
    66,629.12/99,971.37 = 29,169.90/x
  3. Step 3: Cross multiply
    66,629.12x = 99,971.37 × 29,169.90
  4. Step 4: Simplify right side
    66,629.12x = 2,916,154,865.76
  5. Step 5: Solve for x
    x = 2,916,154,865.76/66,629.12
  6. Step 6: Final answer
    x = 43,766.98

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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.