Home / 90,824.17-136,234.68-40,868.92

Finding the Fourth Proportional to 90,824.17, 136,234.68 and 40,868.92

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Solution

The fourth proportional to 90,824.17, 136,234.68 and 40,868.92 is: 61,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,824.17 : 136,234.68 = 40,868.92 : x
  2. Step 2: Convert to fraction form
    90,824.17/136,234.68 = 40,868.92/x
  3. Step 3: Cross multiply
    90,824.17x = 136,234.68 × 40,868.92
  4. Step 4: Simplify right side
    90,824.17x = 5,567,764,238.15
  5. Step 5: Solve for x
    x = 5,567,764,238.15/90,824.17
  6. Step 6: Final answer
    x = 61,302.67

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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.