Home / 66,659.20-91,991.43-36,445.79

Finding the Fourth Proportional to 66,659.20, 91,991.43 and 36,445.79

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Solution

The fourth proportional to 66,659.20, 91,991.43 and 36,445.79 is: 50,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,659.20 : 91,991.43 = 36,445.79 : x
  2. Step 2: Convert to fraction form
    66,659.20/91,991.43 = 36,445.79/x
  3. Step 3: Cross multiply
    66,659.20x = 91,991.43 × 36,445.79
  4. Step 4: Simplify right side
    66,659.20x = 3,352,700,569.56
  5. Step 5: Solve for x
    x = 3,352,700,569.56/66,659.20
  6. Step 6: Final answer
    x = 50,296.14

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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.