Home / 50,559.51-75,842.60-20,979.72

Finding the Fourth Proportional to 50,559.51, 75,842.60 and 20,979.72

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Solution

The fourth proportional to 50,559.51, 75,842.60 and 20,979.72 is: 31,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,559.51 : 75,842.60 = 20,979.72 : x
  2. Step 2: Convert to fraction form
    50,559.51/75,842.60 = 20,979.72/x
  3. Step 3: Cross multiply
    50,559.51x = 75,842.60 × 20,979.72
  4. Step 4: Simplify right side
    50,559.51x = 1,591,156,407.17
  5. Step 5: Solve for x
    x = 1,591,156,407.17/50,559.51
  6. Step 6: Final answer
    x = 31,470.96

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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.