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Finding the Fourth Proportional to 55,845.77, 83,779.03 and 18,408.47

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Solution

The fourth proportional to 55,845.77, 83,779.03 and 18,408.47 is: 27,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,845.77 : 83,779.03 = 18,408.47 : x
  2. Step 2: Convert to fraction form
    55,845.77/83,779.03 = 18,408.47/x
  3. Step 3: Cross multiply
    55,845.77x = 83,779.03 × 18,408.47
  4. Step 4: Simplify right side
    55,845.77x = 1,542,243,760.38
  5. Step 5: Solve for x
    x = 1,542,243,760.38/55,845.77
  6. Step 6: Final answer
    x = 27,616.12

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1.5x scale

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.