Home / 80,531.08-120,705.47-41,004.70

Finding the Fourth Proportional to 80,531.08, 120,705.47 and 41,004.70

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Solution

The fourth proportional to 80,531.08, 120,705.47 and 41,004.70 is: 61,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531.08 : 120,705.47 = 41,004.70 : x
  2. Step 2: Convert to fraction form
    80,531.08/120,705.47 = 41,004.70/x
  3. Step 3: Cross multiply
    80,531.08x = 120,705.47 × 41,004.70
  4. Step 4: Simplify right side
    80,531.08x = 4,949,490,982.18
  5. Step 5: Solve for x
    x = 4,949,490,982.18/80,531.08
  6. Step 6: Final answer
    x = 61,460.63

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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.