Home / 90,069.90-135,112.35-26,885.85

Finding the Fourth Proportional to 90,069.90, 135,112.35 and 26,885.85

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Solution

The fourth proportional to 90,069.90, 135,112.35 and 26,885.85 is: 40,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,069.90 : 135,112.35 = 26,885.85 : x
  2. Step 2: Convert to fraction form
    90,069.90/135,112.35 = 26,885.85/x
  3. Step 3: Cross multiply
    90,069.90x = 135,112.35 × 26,885.85
  4. Step 4: Simplify right side
    90,069.90x = 3,632,610,375.25
  5. Step 5: Solve for x
    x = 3,632,610,375.25/90,069.90
  6. Step 6: Final answer
    x = 40,331.01

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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.