Home / 90,281.22-135,421.67-27,101.28

Finding the Fourth Proportional to 90,281.22, 135,421.67 and 27,101.28

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Solution

The fourth proportional to 90,281.22, 135,421.67 and 27,101.28 is: 40,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281.22 : 135,421.67 = 27,101.28 : x
  2. Step 2: Convert to fraction form
    90,281.22/135,421.67 = 27,101.28/x
  3. Step 3: Cross multiply
    90,281.22x = 135,421.67 × 27,101.28
  4. Step 4: Simplify right side
    90,281.22x = 3,670,100,461.23
  5. Step 5: Solve for x
    x = 3,670,100,461.23/90,281.22
  6. Step 6: Final answer
    x = 40,651.87

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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.