Home / 45,545.10-68,309.90-12,257.74

Finding the Fourth Proportional to 45,545.10, 68,309.90 and 12,257.74

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Solution

The fourth proportional to 45,545.10, 68,309.90 and 12,257.74 is: 18,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.10 : 68,309.90 = 12,257.74 : x
  2. Step 2: Convert to fraction form
    45,545.10/68,309.90 = 12,257.74/x
  3. Step 3: Cross multiply
    45,545.10x = 68,309.90 × 12,257.74
  4. Step 4: Simplify right side
    45,545.10x = 837,325,063.69
  5. Step 5: Solve for x
    x = 837,325,063.69/45,545.10
  6. Step 6: Final answer
    x = 18,384.53

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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.