Home / 90,638.13-125,078.38-50,352.00

Finding the Fourth Proportional to 90,638.13, 125,078.38 and 50,352.00

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Solution

The fourth proportional to 90,638.13, 125,078.38 and 50,352.00 is: 69,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,638.13 : 125,078.38 = 50,352.00 : x
  2. Step 2: Convert to fraction form
    90,638.13/125,078.38 = 50,352.00/x
  3. Step 3: Cross multiply
    90,638.13x = 125,078.38 × 50,352.00
  4. Step 4: Simplify right side
    90,638.13x = 6,297,945,932.90
  5. Step 5: Solve for x
    x = 6,297,945,932.90/90,638.13
  6. Step 6: Final answer
    x = 69,484.51

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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.