Home / 54,108.81-74,686.05-31,453.11

Finding the Fourth Proportional to 54,108.81, 74,686.05 and 31,453.11

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Solution

The fourth proportional to 54,108.81, 74,686.05 and 31,453.11 is: 43,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,108.81 : 74,686.05 = 31,453.11 : x
  2. Step 2: Convert to fraction form
    54,108.81/74,686.05 = 31,453.11/x
  3. Step 3: Cross multiply
    54,108.81x = 74,686.05 × 31,453.11
  4. Step 4: Simplify right side
    54,108.81x = 2,349,108,546.12
  5. Step 5: Solve for x
    x = 2,349,108,546.12/54,108.81
  6. Step 6: Final answer
    x = 43,414.53

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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.