Home / 80,315.32-120,492.06-27,725.24

Finding the Fourth Proportional to 80,315.32, 120,492.06 and 27,725.24

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Solution

The fourth proportional to 80,315.32, 120,492.06 and 27,725.24 is: 41,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,315.32 : 120,492.06 = 27,725.24 : x
  2. Step 2: Convert to fraction form
    80,315.32/120,492.06 = 27,725.24/x
  3. Step 3: Cross multiply
    80,315.32x = 120,492.06 × 27,725.24
  4. Step 4: Simplify right side
    80,315.32x = 3,340,671,281.59
  5. Step 5: Solve for x
    x = 3,340,671,281.59/80,315.32
  6. Step 6: Final answer
    x = 41,594.45

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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.