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Finding the Fourth Proportional to 84,910.10, 127,037.10 and 55,385.60

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Solution

The fourth proportional to 84,910.10, 127,037.10 and 55,385.60 is: 82,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,910.10 : 127,037.10 = 55,385.60 : x
  2. Step 2: Convert to fraction form
    84,910.10/127,037.10 = 55,385.60/x
  3. Step 3: Cross multiply
    84,910.10x = 127,037.10 × 55,385.60
  4. Step 4: Simplify right side
    84,910.10x = 7,036,026,005.76
  5. Step 5: Solve for x
    x = 7,036,026,005.76/84,910.10
  6. Step 6: Final answer
    x = 82,864.42

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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.