Home / 55,207.80-76,186.68-30,057.28

Finding the Fourth Proportional to 55,207.80, 76,186.68 and 30,057.28

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Solution

The fourth proportional to 55,207.80, 76,186.68 and 30,057.28 is: 41,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.80 : 76,186.68 = 30,057.28 : x
  2. Step 2: Convert to fraction form
    55,207.80/76,186.68 = 30,057.28/x
  3. Step 3: Cross multiply
    55,207.80x = 76,186.68 × 30,057.28
  4. Step 4: Simplify right side
    55,207.80x = 2,289,964,373.03
  5. Step 5: Solve for x
    x = 2,289,964,373.03/55,207.80
  6. Step 6: Final answer
    x = 41,479.00

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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.