Home / 90,562.56-135,835.20-28,233.60

Finding the Fourth Proportional to 90,562.56, 135,835.20 and 28,233.60

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Solution

The fourth proportional to 90,562.56, 135,835.20 and 28,233.60 is: 42,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,562.56 : 135,835.20 = 28,233.60 : x
  2. Step 2: Convert to fraction form
    90,562.56/135,835.20 = 28,233.60/x
  3. Step 3: Cross multiply
    90,562.56x = 135,835.20 × 28,233.60
  4. Step 4: Simplify right side
    90,562.56x = 3,835,116,702.72
  5. Step 5: Solve for x
    x = 3,835,116,702.72/90,562.56
  6. Step 6: Final answer
    x = 42,347.71

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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.