Home / 90,431.44-135,687.48-35,031.76

Finding the Fourth Proportional to 90,431.44, 135,687.48 and 35,031.76

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Solution

The fourth proportional to 90,431.44, 135,687.48 and 35,031.76 is: 52,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,431.44 : 135,687.48 = 35,031.76 : x
  2. Step 2: Convert to fraction form
    90,431.44/135,687.48 = 35,031.76/x
  3. Step 3: Cross multiply
    90,431.44x = 135,687.48 × 35,031.76
  4. Step 4: Simplify right side
    90,431.44x = 4,753,371,234.36
  5. Step 5: Solve for x
    x = 4,753,371,234.36/90,431.44
  6. Step 6: Final answer
    x = 52,563.26

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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.