Home / 55,983.15-83,979.18-18,541.71

Finding the Fourth Proportional to 55,983.15, 83,979.18 and 18,541.71

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Solution

The fourth proportional to 55,983.15, 83,979.18 and 18,541.71 is: 27,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.15 : 83,979.18 = 18,541.71 : x
  2. Step 2: Convert to fraction form
    55,983.15/83,979.18 = 18,541.71/x
  3. Step 3: Cross multiply
    55,983.15x = 83,979.18 × 18,541.71
  4. Step 4: Simplify right side
    55,983.15x = 1,557,117,601.60
  5. Step 5: Solve for x
    x = 1,557,117,601.60/55,983.15
  6. Step 6: Final answer
    x = 27,814.04

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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.