Home / 90,313.62-135,476.64-27,131.10

Finding the Fourth Proportional to 90,313.62, 135,476.64 and 27,131.10

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Solution

The fourth proportional to 90,313.62, 135,476.64 and 27,131.10 is: 40,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313.62 : 135,476.64 = 27,131.10 : x
  2. Step 2: Convert to fraction form
    90,313.62/135,476.64 = 27,131.10/x
  3. Step 3: Cross multiply
    90,313.62x = 135,476.64 × 27,131.10
  4. Step 4: Simplify right side
    90,313.62x = 3,675,630,267.50
  5. Step 5: Solve for x
    x = 3,675,630,267.50/90,313.62
  6. Step 6: Final answer
    x = 40,698.52

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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.