Home / 49,399.64-68,171.32-28,178.86

Finding the Fourth Proportional to 49,399.64, 68,171.32 and 28,178.86

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Solution

The fourth proportional to 49,399.64, 68,171.32 and 28,178.86 is: 38,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,399.64 : 68,171.32 = 28,178.86 : x
  2. Step 2: Convert to fraction form
    49,399.64/68,171.32 = 28,178.86/x
  3. Step 3: Cross multiply
    49,399.64x = 68,171.32 × 28,178.86
  4. Step 4: Simplify right side
    49,399.64x = 1,920,990,082.30
  5. Step 5: Solve for x
    x = 1,920,990,082.30/49,399.64
  6. Step 6: Final answer
    x = 38,886.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.