Home / 66,142.96-91,278.28-35,928.88

Finding the Fourth Proportional to 66,142.96, 91,278.28 and 35,928.88

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Solution

The fourth proportional to 66,142.96, 91,278.28 and 35,928.88 is: 49,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.96 : 91,278.28 = 35,928.88 : x
  2. Step 2: Convert to fraction form
    66,142.96/91,278.28 = 35,928.88/x
  3. Step 3: Cross multiply
    66,142.96x = 91,278.28 × 35,928.88
  4. Step 4: Simplify right side
    66,142.96x = 3,279,526,368.73
  5. Step 5: Solve for x
    x = 3,279,526,368.73/66,142.96
  6. Step 6: Final answer
    x = 49,582.39

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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.