Home / 90,718.84-125,178.24-50,432.92

Finding the Fourth Proportional to 90,718.84, 125,178.24 and 50,432.92

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Solution

The fourth proportional to 90,718.84, 125,178.24 and 50,432.92 is: 69,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718.84 : 125,178.24 = 50,432.92 : x
  2. Step 2: Convert to fraction form
    90,718.84/125,178.24 = 50,432.92/x
  3. Step 3: Cross multiply
    90,718.84x = 125,178.24 × 50,432.92
  4. Step 4: Simplify right side
    90,718.84x = 6,313,104,163.66
  5. Step 5: Solve for x
    x = 6,313,104,163.66/90,718.84
  6. Step 6: Final answer
    x = 69,589.78

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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.