Home / 90,140.97-135,214.82-26,961.91

Finding the Fourth Proportional to 90,140.97, 135,214.82 and 26,961.91

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Solution

The fourth proportional to 90,140.97, 135,214.82 and 26,961.91 is: 40,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,140.97 : 135,214.82 = 26,961.91 : x
  2. Step 2: Convert to fraction form
    90,140.97/135,214.82 = 26,961.91/x
  3. Step 3: Cross multiply
    90,140.97x = 135,214.82 × 26,961.91
  4. Step 4: Simplify right side
    90,140.97x = 3,645,649,807.51
  5. Step 5: Solve for x
    x = 3,645,649,807.51/90,140.97
  6. Step 6: Final answer
    x = 40,443.87

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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.