Home / 55,412.19-83,080.32-19,872.75

Finding the Fourth Proportional to 55,412.19, 83,080.32 and 19,872.75

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Solution

The fourth proportional to 55,412.19, 83,080.32 and 19,872.75 is: 29,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.19 : 83,080.32 = 19,872.75 : x
  2. Step 2: Convert to fraction form
    55,412.19/83,080.32 = 19,872.75/x
  3. Step 3: Cross multiply
    55,412.19x = 83,080.32 × 19,872.75
  4. Step 4: Simplify right side
    55,412.19x = 1,651,034,429.28
  5. Step 5: Solve for x
    x = 1,651,034,429.28/55,412.19
  6. Step 6: Final answer
    x = 29,795.51

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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.