Home / 90,279.06-135,431.20-37,676.50

Finding the Fourth Proportional to 90,279.06, 135,431.20 and 37,676.50

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Solution

The fourth proportional to 90,279.06, 135,431.20 and 37,676.50 is: 56,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.06 : 135,431.20 = 37,676.50 : x
  2. Step 2: Convert to fraction form
    90,279.06/135,431.20 = 37,676.50/x
  3. Step 3: Cross multiply
    90,279.06x = 135,431.20 × 37,676.50
  4. Step 4: Simplify right side
    90,279.06x = 5,102,573,606.80
  5. Step 5: Solve for x
    x = 5,102,573,606.80/90,279.06
  6. Step 6: Final answer
    x = 56,520.01

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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.