Home / 54,302.18-74,936.06-30,428.78

Finding the Fourth Proportional to 54,302.18, 74,936.06 and 30,428.78

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Solution

The fourth proportional to 54,302.18, 74,936.06 and 30,428.78 is: 41,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.18 : 74,936.06 = 30,428.78 : x
  2. Step 2: Convert to fraction form
    54,302.18/74,936.06 = 30,428.78/x
  3. Step 3: Cross multiply
    54,302.18x = 74,936.06 × 30,428.78
  4. Step 4: Simplify right side
    54,302.18x = 2,280,212,883.81
  5. Step 5: Solve for x
    x = 2,280,212,883.81/54,302.18
  6. Step 6: Final answer
    x = 41,991.18

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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.