Home / 90,745.92-125,226-50,459.76

Finding the Fourth Proportional to 90,745.92, 125,226 and 50,459.76

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Solution

The fourth proportional to 90,745.92, 125,226 and 50,459.76 is: 69,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.92 : 125,226 = 50,459.76 : x
  2. Step 2: Convert to fraction form
    90,745.92/125,226 = 50,459.76/x
  3. Step 3: Cross multiply
    90,745.92x = 125,226 × 50,459.76
  4. Step 4: Simplify right side
    90,745.92x = 6,318,873,905.76
  5. Step 5: Solve for x
    x = 6,318,873,905.76/90,745.92
  6. Step 6: Final answer
    x = 69,632.60

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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.