Home / 90,115.94-135,255.62-48,031.38

Finding the Fourth Proportional to 90,115.94, 135,255.62 and 48,031.38

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Solution

The fourth proportional to 90,115.94, 135,255.62 and 48,031.38 is: 72,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.94 : 135,255.62 = 48,031.38 : x
  2. Step 2: Convert to fraction form
    90,115.94/135,255.62 = 48,031.38/x
  3. Step 3: Cross multiply
    90,115.94x = 135,255.62 × 48,031.38
  4. Step 4: Simplify right side
    90,115.94x = 6,496,514,201.43
  5. Step 5: Solve for x
    x = 6,496,514,201.43/90,115.94
  6. Step 6: Final answer
    x = 72,090.62

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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.