Home / 89,079.64-122,899.38-50,811.70

Finding the Fourth Proportional to 89,079.64, 122,899.38 and 50,811.70

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Solution

The fourth proportional to 89,079.64, 122,899.38 and 50,811.70 is: 70,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,079.64 : 122,899.38 = 50,811.70 : x
  2. Step 2: Convert to fraction form
    89,079.64/122,899.38 = 50,811.70/x
  3. Step 3: Cross multiply
    89,079.64x = 122,899.38 × 50,811.70
  4. Step 4: Simplify right side
    89,079.64x = 6,244,726,426.75
  5. Step 5: Solve for x
    x = 6,244,726,426.75/89,079.64
  6. Step 6: Final answer
    x = 70,102.74

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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.