Home / 45,511.68-68,266.88-12,230.72

Finding the Fourth Proportional to 45,511.68, 68,266.88 and 12,230.72

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Solution

The fourth proportional to 45,511.68, 68,266.88 and 12,230.72 is: 18,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,511.68 : 68,266.88 = 12,230.72 : x
  2. Step 2: Convert to fraction form
    45,511.68/68,266.88 = 12,230.72/x
  3. Step 3: Cross multiply
    45,511.68x = 68,266.88 × 12,230.72
  4. Step 4: Simplify right side
    45,511.68x = 834,953,094.55
  5. Step 5: Solve for x
    x = 834,953,094.55/45,511.68
  6. Step 6: Final answer
    x = 18,345.91

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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.