Home / 51,197.12-70,657.20-28,539.80

Finding the Fourth Proportional to 51,197.12, 70,657.20 and 28,539.80

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Solution

The fourth proportional to 51,197.12, 70,657.20 and 28,539.80 is: 39,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,197.12 : 70,657.20 = 28,539.80 : x
  2. Step 2: Convert to fraction form
    51,197.12/70,657.20 = 28,539.80/x
  3. Step 3: Cross multiply
    51,197.12x = 70,657.20 × 28,539.80
  4. Step 4: Simplify right side
    51,197.12x = 2,016,542,356.56
  5. Step 5: Solve for x
    x = 2,016,542,356.56/51,197.12
  6. Step 6: Final answer
    x = 39,387.81

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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.