Home / 54,442.78-75,129.09-30,570.46

Finding the Fourth Proportional to 54,442.78, 75,129.09 and 30,570.46

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Solution

The fourth proportional to 54,442.78, 75,129.09 and 30,570.46 is: 42,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,442.78 : 75,129.09 = 30,570.46 : x
  2. Step 2: Convert to fraction form
    54,442.78/75,129.09 = 30,570.46/x
  3. Step 3: Cross multiply
    54,442.78x = 75,129.09 × 30,570.46
  4. Step 4: Simplify right side
    54,442.78x = 2,296,730,840.68
  5. Step 5: Solve for x
    x = 2,296,730,840.68/54,442.78
  6. Step 6: Final answer
    x = 42,186.14

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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.