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Finding the Fourth Proportional to 55,209.92, 82,814.67 and 13,656.92

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Solution

The fourth proportional to 55,209.92, 82,814.67 and 13,656.92 is: 20,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.92 : 82,814.67 = 13,656.92 : x
  2. Step 2: Convert to fraction form
    55,209.92/82,814.67 = 13,656.92/x
  3. Step 3: Cross multiply
    55,209.92x = 82,814.67 × 13,656.92
  4. Step 4: Simplify right side
    55,209.92x = 1,130,992,908.94
  5. Step 5: Solve for x
    x = 1,130,992,908.94/55,209.92
  6. Step 6: Final answer
    x = 20,485.32

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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.