Home / 90,520.69-124,918.86-50,240.25

Finding the Fourth Proportional to 90,520.69, 124,918.86 and 50,240.25

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Solution

The fourth proportional to 90,520.69, 124,918.86 and 50,240.25 is: 69,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,520.69 : 124,918.86 = 50,240.25 : x
  2. Step 2: Convert to fraction form
    90,520.69/124,918.86 = 50,240.25/x
  3. Step 3: Cross multiply
    90,520.69x = 124,918.86 × 50,240.25
  4. Step 4: Simplify right side
    90,520.69x = 6,275,954,661.91
  5. Step 5: Solve for x
    x = 6,275,954,661.91/90,520.69
  6. Step 6: Final answer
    x = 69,331.72

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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.