Home / 47,939.60-66,156.86-27,808.40

Finding the Fourth Proportional to 47,939.60, 66,156.86 and 27,808.40

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Solution

The fourth proportional to 47,939.60, 66,156.86 and 27,808.40 is: 38,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.60 : 66,156.86 = 27,808.40 : x
  2. Step 2: Convert to fraction form
    47,939.60/66,156.86 = 27,808.40/x
  3. Step 3: Cross multiply
    47,939.60x = 66,156.86 × 27,808.40
  4. Step 4: Simplify right side
    47,939.60x = 1,839,716,164.36
  5. Step 5: Solve for x
    x = 1,839,716,164.36/47,939.60
  6. Step 6: Final answer
    x = 38,375.71

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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.