Home / 254,031.32-381,047.00-85,537.55

Finding the Fourth Proportional to 254,031.32, 381,047.00 and 85,537.55

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Solution

The fourth proportional to 254,031.32, 381,047.00 and 85,537.55 is: 128,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,031.32 : 381,047.00 = 85,537.55 : x
  2. Step 2: Convert to fraction form
    254,031.32/381,047.00 = 85,537.55/x
  3. Step 3: Cross multiply
    254,031.32x = 381,047.00 × 85,537.55
  4. Step 4: Simplify right side
    254,031.32x = 32,593,824,481.93
  5. Step 5: Solve for x
    x = 32,593,824,481.93/254,031.32
  6. Step 6: Final answer
    x = 128,306.32

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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.