Home / 74,521.92-102,839.24-40,529.67

Finding the Fourth Proportional to 74,521.92, 102,839.24 and 40,529.67

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Solution

The fourth proportional to 74,521.92, 102,839.24 and 40,529.67 is: 55,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.92 : 102,839.24 = 40,529.67 : x
  2. Step 2: Convert to fraction form
    74,521.92/102,839.24 = 40,529.67/x
  3. Step 3: Cross multiply
    74,521.92x = 102,839.24 × 40,529.67
  4. Step 4: Simplify right side
    74,521.92x = 4,168,040,257.60
  5. Step 5: Solve for x
    x = 4,168,040,257.60/74,521.92
  6. Step 6: Final answer
    x = 55,930.39

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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.