Home / 66,783.12-92,156.64-36,568.80

Finding the Fourth Proportional to 66,783.12, 92,156.64 and 36,568.80

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Solution

The fourth proportional to 66,783.12, 92,156.64 and 36,568.80 is: 50,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,783.12 : 92,156.64 = 36,568.80 : x
  2. Step 2: Convert to fraction form
    66,783.12/92,156.64 = 36,568.80/x
  3. Step 3: Cross multiply
    66,783.12x = 92,156.64 × 36,568.80
  4. Step 4: Simplify right side
    66,783.12x = 3,370,057,599.70
  5. Step 5: Solve for x
    x = 3,370,057,599.70/66,783.12
  6. Step 6: Final answer
    x = 50,462.72

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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.