Home / 66,144.18-91,276.32-35,928.88

Finding the Fourth Proportional to 66,144.18, 91,276.32 and 35,928.88

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Solution

The fourth proportional to 66,144.18, 91,276.32 and 35,928.88 is: 49,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.18 : 91,276.32 = 35,928.88 : x
  2. Step 2: Convert to fraction form
    66,144.18/91,276.32 = 35,928.88/x
  3. Step 3: Cross multiply
    66,144.18x = 91,276.32 × 35,928.88
  4. Step 4: Simplify right side
    66,144.18x = 3,279,455,948.12
  5. Step 5: Solve for x
    x = 3,279,455,948.12/66,144.18
  6. Step 6: Final answer
    x = 49,580.42

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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.