Home / 89,090.40-122,956.92-54,629.04

Finding the Fourth Proportional to 89,090.40, 122,956.92 and 54,629.04

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Solution

The fourth proportional to 89,090.40, 122,956.92 and 54,629.04 is: 75,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,090.40 : 122,956.92 = 54,629.04 : x
  2. Step 2: Convert to fraction form
    89,090.40/122,956.92 = 54,629.04/x
  3. Step 3: Cross multiply
    89,090.40x = 122,956.92 × 54,629.04
  4. Step 4: Simplify right side
    89,090.40x = 6,717,018,500.96
  5. Step 5: Solve for x
    x = 6,717,018,500.96/89,090.40
  6. Step 6: Final answer
    x = 75,395.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.