Home / 71,299.55-107,054.46-39,771.21

Finding the Fourth Proportional to 71,299.55, 107,054.46 and 39,771.21

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Solution

The fourth proportional to 71,299.55, 107,054.46 and 39,771.21 is: 59,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,299.55 : 107,054.46 = 39,771.21 : x
  2. Step 2: Convert to fraction form
    71,299.55/107,054.46 = 39,771.21/x
  3. Step 3: Cross multiply
    71,299.55x = 107,054.46 × 39,771.21
  4. Step 4: Simplify right side
    71,299.55x = 4,257,685,410.10
  5. Step 5: Solve for x
    x = 4,257,685,410.10/71,299.55
  6. Step 6: Final answer
    x = 59,715.46

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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.