Home / 66,074.60-91,183.02-37,780.94

Finding the Fourth Proportional to 66,074.60, 91,183.02 and 37,780.94

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Solution

The fourth proportional to 66,074.60, 91,183.02 and 37,780.94 is: 52,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,074.60 : 91,183.02 = 37,780.94 : x
  2. Step 2: Convert to fraction form
    66,074.60/91,183.02 = 37,780.94/x
  3. Step 3: Cross multiply
    66,074.60x = 91,183.02 × 37,780.94
  4. Step 4: Simplify right side
    66,074.60x = 3,444,980,207.64
  5. Step 5: Solve for x
    x = 3,444,980,207.64/66,074.60
  6. Step 6: Final answer
    x = 52,137.74

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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.