Home / 80,837.46-120,918.60-56,820.24

Finding the Fourth Proportional to 80,837.46, 120,918.60 and 56,820.24

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Solution

The fourth proportional to 80,837.46, 120,918.60 and 56,820.24 is: 84,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,837.46 : 120,918.60 = 56,820.24 : x
  2. Step 2: Convert to fraction form
    80,837.46/120,918.60 = 56,820.24/x
  3. Step 3: Cross multiply
    80,837.46x = 120,918.60 × 56,820.24
  4. Step 4: Simplify right side
    80,837.46x = 6,870,623,872.46
  5. Step 5: Solve for x
    x = 6,870,623,872.46/80,837.46
  6. Step 6: Final answer
    x = 84,993.07

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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.