Home / 80,269.09-110,772.15-48,431.86

Finding the Fourth Proportional to 80,269.09, 110,772.15 and 48,431.86

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Solution

The fourth proportional to 80,269.09, 110,772.15 and 48,431.86 is: 66,836.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,269.09 : 110,772.15 = 48,431.86 : x
  2. Step 2: Convert to fraction form
    80,269.09/110,772.15 = 48,431.86/x
  3. Step 3: Cross multiply
    80,269.09x = 110,772.15 × 48,431.86
  4. Step 4: Simplify right side
    80,269.09x = 5,364,901,260.70
  5. Step 5: Solve for x
    x = 5,364,901,260.70/80,269.09
  6. Step 6: Final answer
    x = 66,836.45

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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.