Home / 90,500.49-135,768.96-31,334.85

Finding the Fourth Proportional to 90,500.49, 135,768.96 and 31,334.85

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Solution

The fourth proportional to 90,500.49, 135,768.96 and 31,334.85 is: 47,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,500.49 : 135,768.96 = 31,334.85 : x
  2. Step 2: Convert to fraction form
    90,500.49/135,768.96 = 31,334.85/x
  3. Step 3: Cross multiply
    90,500.49x = 135,768.96 × 31,334.85
  4. Step 4: Simplify right side
    90,500.49x = 4,254,299,996.26
  5. Step 5: Solve for x
    x = 4,254,299,996.26/90,500.49
  6. Step 6: Final answer
    x = 47,008.59

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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.