Home / 90,546.36-135,775.79-53,118.59

Finding the Fourth Proportional to 90,546.36, 135,775.79 and 53,118.59

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Solution

The fourth proportional to 90,546.36, 135,775.79 and 53,118.59 is: 79,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546.36 : 135,775.79 = 53,118.59 : x
  2. Step 2: Convert to fraction form
    90,546.36/135,775.79 = 53,118.59/x
  3. Step 3: Cross multiply
    90,546.36x = 135,775.79 × 53,118.59
  4. Step 4: Simplify right side
    90,546.36x = 7,212,218,074.45
  5. Step 5: Solve for x
    x = 7,212,218,074.45/90,546.36
  6. Step 6: Final answer
    x = 79,652.22

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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.