Home / 55,290.78-76,301.82-30,140.28

Finding the Fourth Proportional to 55,290.78, 76,301.82 and 30,140.28

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Solution

The fourth proportional to 55,290.78, 76,301.82 and 30,140.28 is: 41,593.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.78 : 76,301.82 = 30,140.28 : x
  2. Step 2: Convert to fraction form
    55,290.78/76,301.82 = 30,140.28/x
  3. Step 3: Cross multiply
    55,290.78x = 76,301.82 × 30,140.28
  4. Step 4: Simplify right side
    55,290.78x = 2,299,758,219.31
  5. Step 5: Solve for x
    x = 2,299,758,219.31/55,290.78
  6. Step 6: Final answer
    x = 41,593.88

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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.