Home / 43,730.71-65,600.75-12,140.91

Finding the Fourth Proportional to 43,730.71, 65,600.75 and 12,140.91

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Solution

The fourth proportional to 43,730.71, 65,600.75 and 12,140.91 is: 18,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,730.71 : 65,600.75 = 12,140.91 : x
  2. Step 2: Convert to fraction form
    43,730.71/65,600.75 = 12,140.91/x
  3. Step 3: Cross multiply
    43,730.71x = 65,600.75 × 12,140.91
  4. Step 4: Simplify right side
    43,730.71x = 796,452,801.68
  5. Step 5: Solve for x
    x = 796,452,801.68/43,730.71
  6. Step 6: Final answer
    x = 18,212.67

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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.