Home / 85,714.06-128,540.94-25,724.62

Finding the Fourth Proportional to 85,714.06, 128,540.94 and 25,724.62

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Solution

The fourth proportional to 85,714.06, 128,540.94 and 25,724.62 is: 38,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,714.06 : 128,540.94 = 25,724.62 : x
  2. Step 2: Convert to fraction form
    85,714.06/128,540.94 = 25,724.62/x
  3. Step 3: Cross multiply
    85,714.06x = 128,540.94 × 25,724.62
  4. Step 4: Simplify right side
    85,714.06x = 3,306,666,835.94
  5. Step 5: Solve for x
    x = 3,306,666,835.94/85,714.06
  6. Step 6: Final answer
    x = 38,577.88

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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.