Home / 90,118.33-135,207.12-36,855.12

Finding the Fourth Proportional to 90,118.33, 135,207.12 and 36,855.12

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Solution

The fourth proportional to 90,118.33, 135,207.12 and 36,855.12 is: 55,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,118.33 : 135,207.12 = 36,855.12 : x
  2. Step 2: Convert to fraction form
    90,118.33/135,207.12 = 36,855.12/x
  3. Step 3: Cross multiply
    90,118.33x = 135,207.12 × 36,855.12
  4. Step 4: Simplify right side
    90,118.33x = 4,983,074,632.45
  5. Step 5: Solve for x
    x = 4,983,074,632.45/90,118.33
  6. Step 6: Final answer
    x = 55,294.80

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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.