Home / 90,722.16-125,167.68-54,900.72

Finding the Fourth Proportional to 90,722.16, 125,167.68 and 54,900.72

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Solution

The fourth proportional to 90,722.16, 125,167.68 and 54,900.72 is: 75,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,722.16 : 125,167.68 = 54,900.72 : x
  2. Step 2: Convert to fraction form
    90,722.16/125,167.68 = 54,900.72/x
  3. Step 3: Cross multiply
    90,722.16x = 125,167.68 × 54,900.72
  4. Step 4: Simplify right side
    90,722.16x = 6,871,795,752.73
  5. Step 5: Solve for x
    x = 6,871,795,752.73/90,722.16
  6. Step 6: Final answer
    x = 75,745.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.