Home / 80,685.08-111,299.96-48,411.35

Finding the Fourth Proportional to 80,685.08, 111,299.96 and 48,411.35

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Solution

The fourth proportional to 80,685.08, 111,299.96 and 48,411.35 is: 66,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,685.08 : 111,299.96 = 48,411.35 : x
  2. Step 2: Convert to fraction form
    80,685.08/111,299.96 = 48,411.35/x
  3. Step 3: Cross multiply
    80,685.08x = 111,299.96 × 48,411.35
  4. Step 4: Simplify right side
    80,685.08x = 5,388,180,519.99
  5. Step 5: Solve for x
    x = 5,388,180,519.99/80,685.08
  6. Step 6: Final answer
    x = 66,780.39

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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.