Home / 89,012.58-133,520.21-29,040.78

Finding the Fourth Proportional to 89,012.58, 133,520.21 and 29,040.78

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Solution

The fourth proportional to 89,012.58, 133,520.21 and 29,040.78 is: 43,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,012.58 : 133,520.21 = 29,040.78 : x
  2. Step 2: Convert to fraction form
    89,012.58/133,520.21 = 29,040.78/x
  3. Step 3: Cross multiply
    89,012.58x = 133,520.21 × 29,040.78
  4. Step 4: Simplify right side
    89,012.58x = 3,877,531,044.16
  5. Step 5: Solve for x
    x = 3,877,531,044.16/89,012.58
  6. Step 6: Final answer
    x = 43,561.61

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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.