Home / 90,504.49-135,774.96-31,338.85

Finding the Fourth Proportional to 90,504.49, 135,774.96 and 31,338.85

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Solution

The fourth proportional to 90,504.49, 135,774.96 and 31,338.85 is: 47,014.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,504.49 : 135,774.96 = 31,338.85 : x
  2. Step 2: Convert to fraction form
    90,504.49/135,774.96 = 31,338.85/x
  3. Step 3: Cross multiply
    90,504.49x = 135,774.96 × 31,338.85
  4. Step 4: Simplify right side
    90,504.49x = 4,255,031,105.20
  5. Step 5: Solve for x
    x = 4,255,031,105.20/90,504.49
  6. Step 6: Final answer
    x = 47,014.59

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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.