Home / 90,163.28-124,423.08-49,879.28

Finding the Fourth Proportional to 90,163.28, 124,423.08 and 49,879.28

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Solution

The fourth proportional to 90,163.28, 124,423.08 and 49,879.28 is: 68,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.28 : 124,423.08 = 49,879.28 : x
  2. Step 2: Convert to fraction form
    90,163.28/124,423.08 = 49,879.28/x
  3. Step 3: Cross multiply
    90,163.28x = 124,423.08 × 49,879.28
  4. Step 4: Simplify right side
    90,163.28x = 6,206,133,645.78
  5. Step 5: Solve for x
    x = 6,206,133,645.78/90,163.28
  6. Step 6: Final answer
    x = 68,832.16

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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.