Home / 66,191.10-91,364.16-40,705.26

Finding the Fourth Proportional to 66,191.10, 91,364.16 and 40,705.26

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Solution

The fourth proportional to 66,191.10, 91,364.16 and 40,705.26 is: 56,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,191.10 : 91,364.16 = 40,705.26 : x
  2. Step 2: Convert to fraction form
    66,191.10/91,364.16 = 40,705.26/x
  3. Step 3: Cross multiply
    66,191.10x = 91,364.16 × 40,705.26
  4. Step 4: Simplify right side
    66,191.10x = 3,719,001,887.48
  5. Step 5: Solve for x
    x = 3,719,001,887.48/66,191.10
  6. Step 6: Final answer
    x = 56,185.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.