Home / 90,850.37-136,276.29-31,685.94

Finding the Fourth Proportional to 90,850.37, 136,276.29 and 31,685.94

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Solution

The fourth proportional to 90,850.37, 136,276.29 and 31,685.94 is: 47,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,850.37 : 136,276.29 = 31,685.94 : x
  2. Step 2: Convert to fraction form
    90,850.37/136,276.29 = 31,685.94/x
  3. Step 3: Cross multiply
    90,850.37x = 136,276.29 × 31,685.94
  4. Step 4: Simplify right side
    90,850.37x = 4,318,042,348.36
  5. Step 5: Solve for x
    x = 4,318,042,348.36/90,850.37
  6. Step 6: Final answer
    x = 47,529.17

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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.