Home / 66,801.20-92,164.68-38,502.96

Finding the Fourth Proportional to 66,801.20, 92,164.68 and 38,502.96

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Solution

The fourth proportional to 66,801.20, 92,164.68 and 38,502.96 is: 53,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.20 : 92,164.68 = 38,502.96 : x
  2. Step 2: Convert to fraction form
    66,801.20/92,164.68 = 38,502.96/x
  3. Step 3: Cross multiply
    66,801.20x = 92,164.68 × 38,502.96
  4. Step 4: Simplify right side
    66,801.20x = 3,548,612,987.45
  5. Step 5: Solve for x
    x = 3,548,612,987.45/66,801.20
  6. Step 6: Final answer
    x = 53,121.99

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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.