Home / 70,719.26-106,129.46-25,740.54

Finding the Fourth Proportional to 70,719.26, 106,129.46 and 25,740.54

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Solution

The fourth proportional to 70,719.26, 106,129.46 and 25,740.54 is: 38,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719.26 : 106,129.46 = 25,740.54 : x
  2. Step 2: Convert to fraction form
    70,719.26/106,129.46 = 25,740.54/x
  3. Step 3: Cross multiply
    70,719.26x = 106,129.46 × 25,740.54
  4. Step 4: Simplify right side
    70,719.26x = 2,731,829,610.31
  5. Step 5: Solve for x
    x = 2,731,829,610.31/70,719.26
  6. Step 6: Final answer
    x = 38,629.22

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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.