Home / 90,631.66-135,961.34-46,234.20

Finding the Fourth Proportional to 90,631.66, 135,961.34 and 46,234.20

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Solution

The fourth proportional to 90,631.66, 135,961.34 and 46,234.20 is: 69,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631.66 : 135,961.34 = 46,234.20 : x
  2. Step 2: Convert to fraction form
    90,631.66/135,961.34 = 46,234.20/x
  3. Step 3: Cross multiply
    90,631.66x = 135,961.34 × 46,234.20
  4. Step 4: Simplify right side
    90,631.66x = 6,286,063,785.83
  5. Step 5: Solve for x
    x = 6,286,063,785.83/90,631.66
  6. Step 6: Final answer
    x = 69,358.37

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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.