Home / 80,852.58-121,295.67-34,105.86

Finding the Fourth Proportional to 80,852.58, 121,295.67 and 34,105.86

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Solution

The fourth proportional to 80,852.58, 121,295.67 and 34,105.86 is: 51,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852.58 : 121,295.67 = 34,105.86 : x
  2. Step 2: Convert to fraction form
    80,852.58/121,295.67 = 34,105.86/x
  3. Step 3: Cross multiply
    80,852.58x = 121,295.67 × 34,105.86
  4. Step 4: Simplify right side
    80,852.58x = 4,136,893,139.63
  5. Step 5: Solve for x
    x = 4,136,893,139.63/80,852.58
  6. Step 6: Final answer
    x = 51,165.88

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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.