Home / 81,410.40-122,115.60-50,306.40

Finding the Fourth Proportional to 81,410.40, 122,115.60 and 50,306.40

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Solution

The fourth proportional to 81,410.40, 122,115.60 and 50,306.40 is: 75,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,410.40 : 122,115.60 = 50,306.40 : x
  2. Step 2: Convert to fraction form
    81,410.40/122,115.60 = 50,306.40/x
  3. Step 3: Cross multiply
    81,410.40x = 122,115.60 × 50,306.40
  4. Step 4: Simplify right side
    81,410.40x = 6,143,196,219.84
  5. Step 5: Solve for x
    x = 6,143,196,219.84/81,410.40
  6. Step 6: Final answer
    x = 75,459.60

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1.5x scale

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.