Home / 47,919.90-66,130.11-27,777.90

Finding the Fourth Proportional to 47,919.90, 66,130.11 and 27,777.90

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Solution

The fourth proportional to 47,919.90, 66,130.11 and 27,777.90 is: 38,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,919.90 : 66,130.11 = 27,777.90 : x
  2. Step 2: Convert to fraction form
    47,919.90/66,130.11 = 27,777.90/x
  3. Step 3: Cross multiply
    47,919.90x = 66,130.11 × 27,777.90
  4. Step 4: Simplify right side
    47,919.90x = 1,836,955,582.57
  5. Step 5: Solve for x
    x = 1,836,955,582.57/47,919.90
  6. Step 6: Final answer
    x = 38,333.88

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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.