Home / 57,122.75-78,829.34-31,972.25

Finding the Fourth Proportional to 57,122.75, 78,829.34 and 31,972.25

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Solution

The fourth proportional to 57,122.75, 78,829.34 and 31,972.25 is: 44,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.75 : 78,829.34 = 31,972.25 : x
  2. Step 2: Convert to fraction form
    57,122.75/78,829.34 = 31,972.25/x
  3. Step 3: Cross multiply
    57,122.75x = 78,829.34 × 31,972.25
  4. Step 4: Simplify right side
    57,122.75x = 2,520,351,403.03
  5. Step 5: Solve for x
    x = 2,520,351,403.03/57,122.75
  6. Step 6: Final answer
    x = 44,121.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.