Home / 90,817.10-136,236.58-30,029.43

Finding the Fourth Proportional to 90,817.10, 136,236.58 and 30,029.43

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Solution

The fourth proportional to 90,817.10, 136,236.58 and 30,029.43 is: 45,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,817.10 : 136,236.58 = 30,029.43 : x
  2. Step 2: Convert to fraction form
    90,817.10/136,236.58 = 30,029.43/x
  3. Step 3: Cross multiply
    90,817.10x = 136,236.58 × 30,029.43
  4. Step 4: Simplify right side
    90,817.10x = 4,091,106,842.55
  5. Step 5: Solve for x
    x = 4,091,106,842.55/90,817.10
  6. Step 6: Final answer
    x = 45,047.76

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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.