Home / 55,280.09-82,920.11-13,727.09

Finding the Fourth Proportional to 55,280.09, 82,920.11 and 13,727.09

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Solution

The fourth proportional to 55,280.09, 82,920.11 and 13,727.09 is: 20,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,280.09 : 82,920.11 = 13,727.09 : x
  2. Step 2: Convert to fraction form
    55,280.09/82,920.11 = 13,727.09/x
  3. Step 3: Cross multiply
    55,280.09x = 82,920.11 × 13,727.09
  4. Step 4: Simplify right side
    55,280.09x = 1,138,251,329.54
  5. Step 5: Solve for x
    x = 1,138,251,329.54/55,280.09
  6. Step 6: Final answer
    x = 20,590.62

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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.