Home / 90,399.40-124,742.77-50,109.73

Finding the Fourth Proportional to 90,399.40, 124,742.77 and 50,109.73

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Solution

The fourth proportional to 90,399.40, 124,742.77 and 50,109.73 is: 69,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,399.40 : 124,742.77 = 50,109.73 : x
  2. Step 2: Convert to fraction form
    90,399.40/124,742.77 = 50,109.73/x
  3. Step 3: Cross multiply
    90,399.40x = 124,742.77 × 50,109.73
  4. Step 4: Simplify right side
    90,399.40x = 6,250,826,437.86
  5. Step 5: Solve for x
    x = 6,250,826,437.86/90,399.40
  6. Step 6: Final answer
    x = 69,146.77

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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.