Home / 57,288.51-85,995.60-45,517.92

Finding the Fourth Proportional to 57,288.51, 85,995.60 and 45,517.92

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Solution

The fourth proportional to 57,288.51, 85,995.60 and 45,517.92 is: 68,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.51 : 85,995.60 = 45,517.92 : x
  2. Step 2: Convert to fraction form
    57,288.51/85,995.60 = 45,517.92/x
  3. Step 3: Cross multiply
    57,288.51x = 85,995.60 × 45,517.92
  4. Step 4: Simplify right side
    57,288.51x = 3,914,340,841.15
  5. Step 5: Solve for x
    x = 3,914,340,841.15/57,288.51
  6. Step 6: Final answer
    x = 68,326.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.