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Finding the Fourth Proportional to 85,109.16, 127,620.84 and 49,582.20

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Solution

The fourth proportional to 85,109.16, 127,620.84 and 49,582.20 is: 74,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.16 : 127,620.84 = 49,582.20 : x
  2. Step 2: Convert to fraction form
    85,109.16/127,620.84 = 49,582.20/x
  3. Step 3: Cross multiply
    85,109.16x = 127,620.84 × 49,582.20
  4. Step 4: Simplify right side
    85,109.16x = 6,327,722,013.05
  5. Step 5: Solve for x
    x = 6,327,722,013.05/85,109.16
  6. Step 6: Final answer
    x = 74,348.31

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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.