Home / 90,039.09-135,073.23-27,709.59

Finding the Fourth Proportional to 90,039.09, 135,073.23 and 27,709.59

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Solution

The fourth proportional to 90,039.09, 135,073.23 and 27,709.59 is: 41,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,039.09 : 135,073.23 = 27,709.59 : x
  2. Step 2: Convert to fraction form
    90,039.09/135,073.23 = 27,709.59/x
  3. Step 3: Cross multiply
    90,039.09x = 135,073.23 × 27,709.59
  4. Step 4: Simplify right side
    90,039.09x = 3,742,823,823.28
  5. Step 5: Solve for x
    x = 3,742,823,823.28/90,039.09
  6. Step 6: Final answer
    x = 41,568.88

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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.