Home / 90,677.96-125,135.72-50,390.69

Finding the Fourth Proportional to 90,677.96, 125,135.72 and 50,390.69

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Solution

The fourth proportional to 90,677.96, 125,135.72 and 50,390.69 is: 69,539.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,677.96 : 125,135.72 = 50,390.69 : x
  2. Step 2: Convert to fraction form
    90,677.96/125,135.72 = 50,390.69/x
  3. Step 3: Cross multiply
    90,677.96x = 125,135.72 × 50,390.69
  4. Step 4: Simplify right side
    90,677.96x = 6,305,675,274.45
  5. Step 5: Solve for x
    x = 6,305,675,274.45/90,677.96
  6. Step 6: Final answer
    x = 69,539.23

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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.