Home / 45,855.17-68,782.86-12,575.71

Finding the Fourth Proportional to 45,855.17, 68,782.86 and 12,575.71

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Solution

The fourth proportional to 45,855.17, 68,782.86 and 12,575.71 is: 18,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.17 : 68,782.86 = 12,575.71 : x
  2. Step 2: Convert to fraction form
    45,855.17/68,782.86 = 12,575.71/x
  3. Step 3: Cross multiply
    45,855.17x = 68,782.86 × 12,575.71
  4. Step 4: Simplify right side
    45,855.17x = 864,993,237.45
  5. Step 5: Solve for x
    x = 864,993,237.45/45,855.17
  6. Step 6: Final answer
    x = 18,863.59

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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.