Home / 90,732.06-135,979.83-46,321.38

Finding the Fourth Proportional to 90,732.06, 135,979.83 and 46,321.38

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Solution

The fourth proportional to 90,732.06, 135,979.83 and 46,321.38 is: 69,421.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,732.06 : 135,979.83 = 46,321.38 : x
  2. Step 2: Convert to fraction form
    90,732.06/135,979.83 = 46,321.38/x
  3. Step 3: Cross multiply
    90,732.06x = 135,979.83 × 46,321.38
  4. Step 4: Simplify right side
    90,732.06x = 6,298,773,377.77
  5. Step 5: Solve for x
    x = 6,298,773,377.77/90,732.06
  6. Step 6: Final answer
    x = 69,421.69

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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.