Home / 50,319.60-75,478.56-12,879.32

Finding the Fourth Proportional to 50,319.60, 75,478.56 and 12,879.32

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Solution

The fourth proportional to 50,319.60, 75,478.56 and 12,879.32 is: 19,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,319.60 : 75,478.56 = 12,879.32 : x
  2. Step 2: Convert to fraction form
    50,319.60/75,478.56 = 12,879.32/x
  3. Step 3: Cross multiply
    50,319.60x = 75,478.56 × 12,879.32
  4. Step 4: Simplify right side
    50,319.60x = 972,112,527.38
  5. Step 5: Solve for x
    x = 972,112,527.38/50,319.60
  6. Step 6: Final answer
    x = 19,318.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.