Home / 51,520.86-71,078.31-30,266.46

Finding the Fourth Proportional to 51,520.86, 71,078.31 and 30,266.46

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Solution

The fourth proportional to 51,520.86, 71,078.31 and 30,266.46 is: 41,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520.86 : 71,078.31 = 30,266.46 : x
  2. Step 2: Convert to fraction form
    51,520.86/71,078.31 = 30,266.46/x
  3. Step 3: Cross multiply
    51,520.86x = 71,078.31 × 30,266.46
  4. Step 4: Simplify right side
    51,520.86x = 2,151,288,826.48
  5. Step 5: Solve for x
    x = 2,151,288,826.48/51,520.86
  6. Step 6: Final answer
    x = 41,755.69

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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.