Home / 90,836.92-136,292.82-40,209.40

Finding the Fourth Proportional to 90,836.92, 136,292.82 and 40,209.40

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Solution

The fourth proportional to 90,836.92, 136,292.82 and 40,209.40 is: 60,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836.92 : 136,292.82 = 40,209.40 : x
  2. Step 2: Convert to fraction form
    90,836.92/136,292.82 = 40,209.40/x
  3. Step 3: Cross multiply
    90,836.92x = 136,292.82 × 40,209.40
  4. Step 4: Simplify right side
    90,836.92x = 5,480,252,516.51
  5. Step 5: Solve for x
    x = 5,480,252,516.51/90,836.92
  6. Step 6: Final answer
    x = 60,330.67

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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.