Home / 85,109.24-127,722.18-29,705.24

Finding the Fourth Proportional to 85,109.24, 127,722.18 and 29,705.24

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Solution

The fourth proportional to 85,109.24, 127,722.18 and 29,705.24 is: 44,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.24 : 127,722.18 = 29,705.24 : x
  2. Step 2: Convert to fraction form
    85,109.24/127,722.18 = 29,705.24/x
  3. Step 3: Cross multiply
    85,109.24x = 127,722.18 × 29,705.24
  4. Step 4: Simplify right side
    85,109.24x = 3,794,018,010.22
  5. Step 5: Solve for x
    x = 3,794,018,010.22/85,109.24
  6. Step 6: Final answer
    x = 44,578.22

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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.