Home / 90,725.88-125,190.77-50,434.48

Finding the Fourth Proportional to 90,725.88, 125,190.77 and 50,434.48

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Solution

The fourth proportional to 90,725.88, 125,190.77 and 50,434.48 is: 69,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,725.88 : 125,190.77 = 50,434.48 : x
  2. Step 2: Convert to fraction form
    90,725.88/125,190.77 = 50,434.48/x
  3. Step 3: Cross multiply
    90,725.88x = 125,190.77 × 50,434.48
  4. Step 4: Simplify right side
    90,725.88x = 6,313,931,385.75
  5. Step 5: Solve for x
    x = 6,313,931,385.75/90,725.88
  6. Step 6: Final answer
    x = 69,593.50

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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.