Home / 84,817.22-127,032.05-40,475.12

Finding the Fourth Proportional to 84,817.22, 127,032.05 and 40,475.12

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Solution

The fourth proportional to 84,817.22, 127,032.05 and 40,475.12 is: 60,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,817.22 : 127,032.05 = 40,475.12 : x
  2. Step 2: Convert to fraction form
    84,817.22/127,032.05 = 40,475.12/x
  3. Step 3: Cross multiply
    84,817.22x = 127,032.05 × 40,475.12
  4. Step 4: Simplify right side
    84,817.22x = 5,141,636,832.44
  5. Step 5: Solve for x
    x = 5,141,636,832.44/84,817.22
  6. Step 6: Final answer
    x = 60,620.20

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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.