Home / 90,919.11-125,468.24-50,636.37

Finding the Fourth Proportional to 90,919.11, 125,468.24 and 50,636.37

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Solution

The fourth proportional to 90,919.11, 125,468.24 and 50,636.37 is: 69,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,919.11 : 125,468.24 = 50,636.37 : x
  2. Step 2: Convert to fraction form
    90,919.11/125,468.24 = 50,636.37/x
  3. Step 3: Cross multiply
    90,919.11x = 125,468.24 × 50,636.37
  4. Step 4: Simplify right side
    90,919.11x = 6,353,255,970.71
  5. Step 5: Solve for x
    x = 6,353,255,970.71/90,919.11
  6. Step 6: Final answer
    x = 69,878.11

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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.