Home / 90,631.92-135,961.71-46,234.45

Finding the Fourth Proportional to 90,631.92, 135,961.71 and 46,234.45

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Solution

The fourth proportional to 90,631.92, 135,961.71 and 46,234.45 is: 69,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631.92 : 135,961.71 = 46,234.45 : x
  2. Step 2: Convert to fraction form
    90,631.92/135,961.71 = 46,234.45/x
  3. Step 3: Cross multiply
    90,631.92x = 135,961.71 × 46,234.45
  4. Step 4: Simplify right side
    90,631.92x = 6,286,114,543.01
  5. Step 5: Solve for x
    x = 6,286,114,543.01/90,631.92
  6. Step 6: Final answer
    x = 69,358.73

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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.