Home / 70,419.56-105,629.51-17,829.05

Finding the Fourth Proportional to 70,419.56, 105,629.51 and 17,829.05

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Solution

The fourth proportional to 70,419.56, 105,629.51 and 17,829.05 is: 26,743.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,419.56 : 105,629.51 = 17,829.05 : x
  2. Step 2: Convert to fraction form
    70,419.56/105,629.51 = 17,829.05/x
  3. Step 3: Cross multiply
    70,419.56x = 105,629.51 × 17,829.05
  4. Step 4: Simplify right side
    70,419.56x = 1,883,273,331.69
  5. Step 5: Solve for x
    x = 1,883,273,331.69/70,419.56
  6. Step 6: Final answer
    x = 26,743.61

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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.