Home / 66,445.93-91,705.89-39,604.02

Finding the Fourth Proportional to 66,445.93, 91,705.89 and 39,604.02

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Solution

The fourth proportional to 66,445.93, 91,705.89 and 39,604.02 is: 54,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445.93 : 91,705.89 = 39,604.02 : x
  2. Step 2: Convert to fraction form
    66,445.93/91,705.89 = 39,604.02/x
  3. Step 3: Cross multiply
    66,445.93x = 91,705.89 × 39,604.02
  4. Step 4: Simplify right side
    66,445.93x = 3,631,921,901.68
  5. Step 5: Solve for x
    x = 3,631,921,901.68/66,445.93
  6. Step 6: Final answer
    x = 54,659.81

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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.