Home / 90,800.48-125,298.78-50,512.70

Finding the Fourth Proportional to 90,800.48, 125,298.78 and 50,512.70

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Solution

The fourth proportional to 90,800.48, 125,298.78 and 50,512.70 is: 69,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.48 : 125,298.78 = 50,512.70 : x
  2. Step 2: Convert to fraction form
    90,800.48/125,298.78 = 50,512.70/x
  3. Step 3: Cross multiply
    90,800.48x = 125,298.78 × 50,512.70
  4. Step 4: Simplify right side
    90,800.48x = 6,329,179,684.51
  5. Step 5: Solve for x
    x = 6,329,179,684.51/90,800.48
  6. Step 6: Final answer
    x = 69,704.25

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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.