Home / 50,630.40-75,945.20-13,190.40

Finding the Fourth Proportional to 50,630.40, 75,945.20 and 13,190.40

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Solution

The fourth proportional to 50,630.40, 75,945.20 and 13,190.40 is: 19,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,630.40 : 75,945.20 = 13,190.40 : x
  2. Step 2: Convert to fraction form
    50,630.40/75,945.20 = 13,190.40/x
  3. Step 3: Cross multiply
    50,630.40x = 75,945.20 × 13,190.40
  4. Step 4: Simplify right side
    50,630.40x = 1,001,747,566.08
  5. Step 5: Solve for x
    x = 1,001,747,566.08/50,630.40
  6. Step 6: Final answer
    x = 19,785.50

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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.