Home / 77,166.28-115,750.39-27,211.34

Finding the Fourth Proportional to 77,166.28, 115,750.39 and 27,211.34

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Solution

The fourth proportional to 77,166.28, 115,750.39 and 27,211.34 is: 40,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,166.28 : 115,750.39 = 27,211.34 : x
  2. Step 2: Convert to fraction form
    77,166.28/115,750.39 = 27,211.34/x
  3. Step 3: Cross multiply
    77,166.28x = 115,750.39 × 27,211.34
  4. Step 4: Simplify right side
    77,166.28x = 3,149,723,217.42
  5. Step 5: Solve for x
    x = 3,149,723,217.42/77,166.28
  6. Step 6: Final answer
    x = 40,817.35

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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.