Home / 90,767.19-125,249.10-50,474.46

Finding the Fourth Proportional to 90,767.19, 125,249.10 and 50,474.46

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Solution

The fourth proportional to 90,767.19, 125,249.10 and 50,474.46 is: 69,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,767.19 : 125,249.10 = 50,474.46 : x
  2. Step 2: Convert to fraction form
    90,767.19/125,249.10 = 50,474.46/x
  3. Step 3: Cross multiply
    90,767.19x = 125,249.10 × 50,474.46
  4. Step 4: Simplify right side
    90,767.19x = 6,321,880,687.99
  5. Step 5: Solve for x
    x = 6,321,880,687.99/90,767.19
  6. Step 6: Final answer
    x = 69,649.40

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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.