Home / 90,301.88-135,323.76-50,776.04

Finding the Fourth Proportional to 90,301.88, 135,323.76 and 50,776.04

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Solution

The fourth proportional to 90,301.88, 135,323.76 and 50,776.04 is: 76,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,301.88 : 135,323.76 = 50,776.04 : x
  2. Step 2: Convert to fraction form
    90,301.88/135,323.76 = 50,776.04/x
  3. Step 3: Cross multiply
    90,301.88x = 135,323.76 × 50,776.04
  4. Step 4: Simplify right side
    90,301.88x = 6,871,204,650.71
  5. Step 5: Solve for x
    x = 6,871,204,650.71/90,301.88
  6. Step 6: Final answer
    x = 76,091.49

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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.