Home / 90,730.80-136,096.20-50,708.70

Finding the Fourth Proportional to 90,730.80, 136,096.20 and 50,708.70

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Solution

The fourth proportional to 90,730.80, 136,096.20 and 50,708.70 is: 76,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730.80 : 136,096.20 = 50,708.70 : x
  2. Step 2: Convert to fraction form
    90,730.80/136,096.20 = 50,708.70/x
  3. Step 3: Cross multiply
    90,730.80x = 136,096.20 × 50,708.70
  4. Step 4: Simplify right side
    90,730.80x = 6,901,261,376.94
  5. Step 5: Solve for x
    x = 6,901,261,376.94/90,730.80
  6. Step 6: Final answer
    x = 76,063.05

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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.