Home / 55,145.30-82,717.95-51,257.30

Finding the Fourth Proportional to 55,145.30, 82,717.95 and 51,257.30

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Solution

The fourth proportional to 55,145.30, 82,717.95 and 51,257.30 is: 76,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145.30 : 82,717.95 = 51,257.30 : x
  2. Step 2: Convert to fraction form
    55,145.30/82,717.95 = 51,257.30/x
  3. Step 3: Cross multiply
    55,145.30x = 82,717.95 × 51,257.30
  4. Step 4: Simplify right side
    55,145.30x = 4,239,898,778.54
  5. Step 5: Solve for x
    x = 4,239,898,778.54/55,145.30
  6. Step 6: Final answer
    x = 76,885.95

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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.