Home / 90,551.55-135,796.57-31,373.41

Finding the Fourth Proportional to 90,551.55, 135,796.57 and 31,373.41

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Solution

The fourth proportional to 90,551.55, 135,796.57 and 31,373.41 is: 47,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,551.55 : 135,796.57 = 31,373.41 : x
  2. Step 2: Convert to fraction form
    90,551.55/135,796.57 = 31,373.41/x
  3. Step 3: Cross multiply
    90,551.55x = 135,796.57 × 31,373.41
  4. Step 4: Simplify right side
    90,551.55x = 4,260,401,388.77
  5. Step 5: Solve for x
    x = 4,260,401,388.77/90,551.55
  6. Step 6: Final answer
    x = 47,049.46

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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.