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Finding the Fourth Proportional to 80,258.88, 110,641.86 and 56,311.32

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Solution

The fourth proportional to 80,258.88, 110,641.86 and 56,311.32 is: 77,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,258.88 : 110,641.86 = 56,311.32 : x
  2. Step 2: Convert to fraction form
    80,258.88/110,641.86 = 56,311.32/x
  3. Step 3: Cross multiply
    80,258.88x = 110,641.86 × 56,311.32
  4. Step 4: Simplify right side
    80,258.88x = 6,230,389,183.86
  5. Step 5: Solve for x
    x = 6,230,389,183.86/80,258.88
  6. Step 6: Final answer
    x = 77,628.66

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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.