Home / 53,113.20-79,540.20-50,780.40

Finding the Fourth Proportional to 53,113.20, 79,540.20 and 50,780.40

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Solution

The fourth proportional to 53,113.20, 79,540.20 and 50,780.40 is: 76,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,113.20 : 79,540.20 = 50,780.40 : x
  2. Step 2: Convert to fraction form
    53,113.20/79,540.20 = 50,780.40/x
  3. Step 3: Cross multiply
    53,113.20x = 79,540.20 × 50,780.40
  4. Step 4: Simplify right side
    53,113.20x = 4,039,083,172.08
  5. Step 5: Solve for x
    x = 4,039,083,172.08/53,113.20
  6. Step 6: Final answer
    x = 76,046.69

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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.