Home / 85,388.40-128,096.10-29,233.80

Finding the Fourth Proportional to 85,388.40, 128,096.10 and 29,233.80

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Solution

The fourth proportional to 85,388.40, 128,096.10 and 29,233.80 is: 43,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.40 : 128,096.10 = 29,233.80 : x
  2. Step 2: Convert to fraction form
    85,388.40/128,096.10 = 29,233.80/x
  3. Step 3: Cross multiply
    85,388.40x = 128,096.10 × 29,233.80
  4. Step 4: Simplify right side
    85,388.40x = 3,744,735,768.18
  5. Step 5: Solve for x
    x = 3,744,735,768.18/85,388.40
  6. Step 6: Final answer
    x = 43,855.32

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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.