Home / 90,928.05-125,484.58-50,641.81

Finding the Fourth Proportional to 90,928.05, 125,484.58 and 50,641.81

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Solution

The fourth proportional to 90,928.05, 125,484.58 and 50,641.81 is: 69,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.05 : 125,484.58 = 50,641.81 : x
  2. Step 2: Convert to fraction form
    90,928.05/125,484.58 = 50,641.81/x
  3. Step 3: Cross multiply
    90,928.05x = 125,484.58 × 50,641.81
  4. Step 4: Simplify right side
    90,928.05x = 6,354,766,007.88
  5. Step 5: Solve for x
    x = 6,354,766,007.88/90,928.05
  6. Step 6: Final answer
    x = 69,887.85

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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.