Home / 90,495.90-135,761.49-27,321.12

Finding the Fourth Proportional to 90,495.90, 135,761.49 and 27,321.12

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Solution

The fourth proportional to 90,495.90, 135,761.49 and 27,321.12 is: 40,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,495.90 : 135,761.49 = 27,321.12 : x
  2. Step 2: Convert to fraction form
    90,495.90/135,761.49 = 27,321.12/x
  3. Step 3: Cross multiply
    90,495.90x = 135,761.49 × 27,321.12
  4. Step 4: Simplify right side
    90,495.90x = 3,709,155,959.67
  5. Step 5: Solve for x
    x = 3,709,155,959.67/90,495.90
  6. Step 6: Final answer
    x = 40,987.01

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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.