Home / 55,521.56-76,621.56-30,371.06

Finding the Fourth Proportional to 55,521.56, 76,621.56 and 30,371.06

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Solution

The fourth proportional to 55,521.56, 76,621.56 and 30,371.06 is: 41,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521.56 : 76,621.56 = 30,371.06 : x
  2. Step 2: Convert to fraction form
    55,521.56/76,621.56 = 30,371.06/x
  3. Step 3: Cross multiply
    55,521.56x = 76,621.56 × 30,371.06
  4. Step 4: Simplify right side
    55,521.56x = 2,327,077,996.05
  5. Step 5: Solve for x
    x = 2,327,077,996.05/55,521.56
  6. Step 6: Final answer
    x = 41,913.05

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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.