Home / 54,146.31-74,691.90-31,482.79

Finding the Fourth Proportional to 54,146.31, 74,691.90 and 31,482.79

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Solution

The fourth proportional to 54,146.31, 74,691.90 and 31,482.79 is: 43,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,146.31 : 74,691.90 = 31,482.79 : x
  2. Step 2: Convert to fraction form
    54,146.31/74,691.90 = 31,482.79/x
  3. Step 3: Cross multiply
    54,146.31x = 74,691.90 × 31,482.79
  4. Step 4: Simplify right side
    54,146.31x = 2,351,509,667.84
  5. Step 5: Solve for x
    x = 2,351,509,667.84/54,146.31
  6. Step 6: Final answer
    x = 43,428.81

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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.