Home / 254,417.72-381,670.58-85,939.27

Finding the Fourth Proportional to 254,417.72, 381,670.58 and 85,939.27

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Solution

The fourth proportional to 254,417.72, 381,670.58 and 85,939.27 is: 128,923.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,417.72 : 381,670.58 = 85,939.27 : x
  2. Step 2: Convert to fraction form
    254,417.72/381,670.58 = 85,939.27/x
  3. Step 3: Cross multiply
    254,417.72x = 381,670.58 × 85,939.27
  4. Step 4: Simplify right side
    254,417.72x = 32,800,490,286.35
  5. Step 5: Solve for x
    x = 32,800,490,286.35/254,417.72
  6. Step 6: Final answer
    x = 128,923.77

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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.