Home / 51,778.15-71,451.51-29,120.83

Finding the Fourth Proportional to 51,778.15, 71,451.51 and 29,120.83

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Solution

The fourth proportional to 51,778.15, 71,451.51 and 29,120.83 is: 40,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,778.15 : 71,451.51 = 29,120.83 : x
  2. Step 2: Convert to fraction form
    51,778.15/71,451.51 = 29,120.83/x
  3. Step 3: Cross multiply
    51,778.15x = 71,451.51 × 29,120.83
  4. Step 4: Simplify right side
    51,778.15x = 2,080,727,275.95
  5. Step 5: Solve for x
    x = 2,080,727,275.95/51,778.15
  6. Step 6: Final answer
    x = 40,185.43

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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.