Home / 66,659.18-91,989.71-36,444.75

Finding the Fourth Proportional to 66,659.18, 91,989.71 and 36,444.75

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Solution

The fourth proportional to 66,659.18, 91,989.71 and 36,444.75 is: 50,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,659.18 : 91,989.71 = 36,444.75 : x
  2. Step 2: Convert to fraction form
    66,659.18/91,989.71 = 36,444.75/x
  3. Step 3: Cross multiply
    66,659.18x = 91,989.71 × 36,444.75
  4. Step 4: Simplify right side
    66,659.18x = 3,352,542,097.19
  5. Step 5: Solve for x
    x = 3,352,542,097.19/66,659.18
  6. Step 6: Final answer
    x = 50,293.78

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1.5x scale

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.