Home / 70,171.89-105,299.34-25,829.79

Finding the Fourth Proportional to 70,171.89, 105,299.34 and 25,829.79

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Solution

The fourth proportional to 70,171.89, 105,299.34 and 25,829.79 is: 38,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,171.89 : 105,299.34 = 25,829.79 : x
  2. Step 2: Convert to fraction form
    70,171.89/105,299.34 = 25,829.79/x
  3. Step 3: Cross multiply
    70,171.89x = 105,299.34 × 25,829.79
  4. Step 4: Simplify right side
    70,171.89x = 2,719,859,839.34
  5. Step 5: Solve for x
    x = 2,719,859,839.34/70,171.89
  6. Step 6: Final answer
    x = 38,759.96

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1.5x scale

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.