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Finding the Fourth Proportional to 84,043.53, 126,080.28 and 27,887.01

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Solution

The fourth proportional to 84,043.53, 126,080.28 and 27,887.01 is: 41,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,043.53 : 126,080.28 = 27,887.01 : x
  2. Step 2: Convert to fraction form
    84,043.53/126,080.28 = 27,887.01/x
  3. Step 3: Cross multiply
    84,043.53x = 126,080.28 × 27,887.01
  4. Step 4: Simplify right side
    84,043.53x = 3,516,002,029.16
  5. Step 5: Solve for x
    x = 3,516,002,029.16/84,043.53
  6. Step 6: Final answer
    x = 41,835.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.