Home / 43,530.78-65,234.58-18,545.67

Finding the Fourth Proportional to 43,530.78, 65,234.58 and 18,545.67

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Solution

The fourth proportional to 43,530.78, 65,234.58 and 18,545.67 is: 27,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,530.78 : 65,234.58 = 18,545.67 : x
  2. Step 2: Convert to fraction form
    43,530.78/65,234.58 = 18,545.67/x
  3. Step 3: Cross multiply
    43,530.78x = 65,234.58 × 18,545.67
  4. Step 4: Simplify right side
    43,530.78x = 1,209,818,993.27
  5. Step 5: Solve for x
    x = 1,209,818,993.27/43,530.78
  6. Step 6: Final answer
    x = 27,792.27

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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.