Home / 80,073.28-110,511.72-77,444.56

Finding the Fourth Proportional to 80,073.28, 110,511.72 and 77,444.56

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Solution

The fourth proportional to 80,073.28, 110,511.72 and 77,444.56 is: 106,883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,073.28 : 110,511.72 = 77,444.56 : x
  2. Step 2: Convert to fraction form
    80,073.28/110,511.72 = 77,444.56/x
  3. Step 3: Cross multiply
    80,073.28x = 110,511.72 × 77,444.56
  4. Step 4: Simplify right side
    80,073.28x = 8,558,531,530.24
  5. Step 5: Solve for x
    x = 8,558,531,530.24/80,073.28
  6. Step 6: Final answer
    x = 106,883.74

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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.