Home / 51,985.14-71,739.55-28,111.81

Finding the Fourth Proportional to 51,985.14, 71,739.55 and 28,111.81

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Solution

The fourth proportional to 51,985.14, 71,739.55 and 28,111.81 is: 38,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.14 : 71,739.55 = 28,111.81 : x
  2. Step 2: Convert to fraction form
    51,985.14/71,739.55 = 28,111.81/x
  3. Step 3: Cross multiply
    51,985.14x = 71,739.55 × 28,111.81
  4. Step 4: Simplify right side
    51,985.14x = 2,016,728,599.09
  5. Step 5: Solve for x
    x = 2,016,728,599.09/51,985.14
  6. Step 6: Final answer
    x = 38,794.33

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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.