Home / 85,406.13-128,096.03-29,233.35

Finding the Fourth Proportional to 85,406.13, 128,096.03 and 29,233.35

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Solution

The fourth proportional to 85,406.13, 128,096.03 and 29,233.35 is: 43,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,406.13 : 128,096.03 = 29,233.35 : x
  2. Step 2: Convert to fraction form
    85,406.13/128,096.03 = 29,233.35/x
  3. Step 3: Cross multiply
    85,406.13x = 128,096.03 × 29,233.35
  4. Step 4: Simplify right side
    85,406.13x = 3,744,676,151.68
  5. Step 5: Solve for x
    x = 3,744,676,151.68/85,406.13
  6. Step 6: Final answer
    x = 43,845.52

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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.