Home / 90,564.23-135,800.20-53,197.31

Finding the Fourth Proportional to 90,564.23, 135,800.20 and 53,197.31

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Solution

The fourth proportional to 90,564.23, 135,800.20 and 53,197.31 is: 79,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,564.23 : 135,800.20 = 53,197.31 : x
  2. Step 2: Convert to fraction form
    90,564.23/135,800.20 = 53,197.31/x
  3. Step 3: Cross multiply
    90,564.23x = 135,800.20 × 53,197.31
  4. Step 4: Simplify right side
    90,564.23x = 7,224,204,680.35
  5. Step 5: Solve for x
    x = 7,224,204,680.35/90,564.23
  6. Step 6: Final answer
    x = 79,768.85

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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.