Home / 51,185.12-70,634.50-28,523.61

Finding the Fourth Proportional to 51,185.12, 70,634.50 and 28,523.61

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Solution

The fourth proportional to 51,185.12, 70,634.50 and 28,523.61 is: 39,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,185.12 : 70,634.50 = 28,523.61 : x
  2. Step 2: Convert to fraction form
    51,185.12/70,634.50 = 28,523.61/x
  3. Step 3: Cross multiply
    51,185.12x = 70,634.50 × 28,523.61
  4. Step 4: Simplify right side
    51,185.12x = 2,014,751,019.68
  5. Step 5: Solve for x
    x = 2,014,751,019.68/51,185.12
  6. Step 6: Final answer
    x = 39,362.05

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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.