Home / 43,121.92-64,688.64-15,410.56

Finding the Fourth Proportional to 43,121.92, 64,688.64 and 15,410.56

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Solution

The fourth proportional to 43,121.92, 64,688.64 and 15,410.56 is: 23,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,121.92 : 64,688.64 = 15,410.56 : x
  2. Step 2: Convert to fraction form
    43,121.92/64,688.64 = 15,410.56/x
  3. Step 3: Cross multiply
    43,121.92x = 64,688.64 × 15,410.56
  4. Step 4: Simplify right side
    43,121.92x = 996,888,168.04
  5. Step 5: Solve for x
    x = 996,888,168.04/43,121.92
  6. Step 6: Final answer
    x = 23,117.90

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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.