Home / 85,514.37-128,290.49-29,353.22

Finding the Fourth Proportional to 85,514.37, 128,290.49 and 29,353.22

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Solution

The fourth proportional to 85,514.37, 128,290.49 and 29,353.22 is: 44,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.37 : 128,290.49 = 29,353.22 : x
  2. Step 2: Convert to fraction form
    85,514.37/128,290.49 = 29,353.22/x
  3. Step 3: Cross multiply
    85,514.37x = 128,290.49 × 29,353.22
  4. Step 4: Simplify right side
    85,514.37x = 3,765,738,830.11
  5. Step 5: Solve for x
    x = 3,765,738,830.11/85,514.37
  6. Step 6: Final answer
    x = 44,036.33

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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.