Home / 90,301.38-135,323.01-50,775.54

Finding the Fourth Proportional to 90,301.38, 135,323.01 and 50,775.54

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Solution

The fourth proportional to 90,301.38, 135,323.01 and 50,775.54 is: 76,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,301.38 : 135,323.01 = 50,775.54 : x
  2. Step 2: Convert to fraction form
    90,301.38/135,323.01 = 50,775.54/x
  3. Step 3: Cross multiply
    90,301.38x = 135,323.01 × 50,775.54
  4. Step 4: Simplify right side
    90,301.38x = 6,871,098,907.18
  5. Step 5: Solve for x
    x = 6,871,098,907.18/90,301.38
  6. Step 6: Final answer
    x = 76,090.74

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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.