Home / 85,237.20-127,855.80-50,216.40

Finding the Fourth Proportional to 85,237.20, 127,855.80 and 50,216.40

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Solution

The fourth proportional to 85,237.20, 127,855.80 and 50,216.40 is: 75,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,237.20 : 127,855.80 = 50,216.40 : x
  2. Step 2: Convert to fraction form
    85,237.20/127,855.80 = 50,216.40/x
  3. Step 3: Cross multiply
    85,237.20x = 127,855.80 × 50,216.40
  4. Step 4: Simplify right side
    85,237.20x = 6,420,457,995.12
  5. Step 5: Solve for x
    x = 6,420,457,995.12/85,237.20
  6. Step 6: Final answer
    x = 75,324.60

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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.