Home / 90,334.05-135,584.37-45,992.76

Finding the Fourth Proportional to 90,334.05, 135,584.37 and 45,992.76

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Solution

The fourth proportional to 90,334.05, 135,584.37 and 45,992.76 is: 69,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,334.05 : 135,584.37 = 45,992.76 : x
  2. Step 2: Convert to fraction form
    90,334.05/135,584.37 = 45,992.76/x
  3. Step 3: Cross multiply
    90,334.05x = 135,584.37 × 45,992.76
  4. Step 4: Simplify right side
    90,334.05x = 6,235,899,389.16
  5. Step 5: Solve for x
    x = 6,235,899,389.16/90,334.05
  6. Step 6: Final answer
    x = 69,031.55

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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.