Home / 70,860.57-106,217.96-31,436.25

Finding the Fourth Proportional to 70,860.57, 106,217.96 and 31,436.25

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Solution

The fourth proportional to 70,860.57, 106,217.96 and 31,436.25 is: 47,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.57 : 106,217.96 = 31,436.25 : x
  2. Step 2: Convert to fraction form
    70,860.57/106,217.96 = 31,436.25/x
  3. Step 3: Cross multiply
    70,860.57x = 106,217.96 × 31,436.25
  4. Step 4: Simplify right side
    70,860.57x = 3,339,094,187.87
  5. Step 5: Solve for x
    x = 3,339,094,187.87/70,860.57
  6. Step 6: Final answer
    x = 47,122.03

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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.