Home / 55,319.38-82,979.64-13,766.38

Finding the Fourth Proportional to 55,319.38, 82,979.64 and 13,766.38

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Solution

The fourth proportional to 55,319.38, 82,979.64 and 13,766.38 is: 20,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319.38 : 82,979.64 = 13,766.38 : x
  2. Step 2: Convert to fraction form
    55,319.38/82,979.64 = 13,766.38/x
  3. Step 3: Cross multiply
    55,319.38x = 82,979.64 × 13,766.38
  4. Step 4: Simplify right side
    55,319.38x = 1,142,329,256.50
  5. Step 5: Solve for x
    x = 1,142,329,256.50/55,319.38
  6. Step 6: Final answer
    x = 20,649.71

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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.