Home / 80,554.39-120,852.10-56,908.15

Finding the Fourth Proportional to 80,554.39, 120,852.10 and 56,908.15

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Solution

The fourth proportional to 80,554.39, 120,852.10 and 56,908.15 is: 85,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,554.39 : 120,852.10 = 56,908.15 : x
  2. Step 2: Convert to fraction form
    80,554.39/120,852.10 = 56,908.15/x
  3. Step 3: Cross multiply
    80,554.39x = 120,852.10 × 56,908.15
  4. Step 4: Simplify right side
    80,554.39x = 6,877,469,434.62
  5. Step 5: Solve for x
    x = 6,877,469,434.62/80,554.39
  6. Step 6: Final answer
    x = 85,376.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.