Home / 55,827.70-83,753.09-18,390.05

Finding the Fourth Proportional to 55,827.70, 83,753.09 and 18,390.05

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Solution

The fourth proportional to 55,827.70, 83,753.09 and 18,390.05 is: 27,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,827.70 : 83,753.09 = 18,390.05 : x
  2. Step 2: Convert to fraction form
    55,827.70/83,753.09 = 18,390.05/x
  3. Step 3: Cross multiply
    55,827.70x = 83,753.09 × 18,390.05
  4. Step 4: Simplify right side
    55,827.70x = 1,540,223,856.19
  5. Step 5: Solve for x
    x = 1,540,223,856.19/55,827.70
  6. Step 6: Final answer
    x = 27,588.88

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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.