Home / 54,761.16-75,564.74-40,428.62

Finding the Fourth Proportional to 54,761.16, 75,564.74 and 40,428.62

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Solution

The fourth proportional to 54,761.16, 75,564.74 and 40,428.62 is: 55,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,761.16 : 75,564.74 = 40,428.62 : x
  2. Step 2: Convert to fraction form
    54,761.16/75,564.74 = 40,428.62/x
  3. Step 3: Cross multiply
    54,761.16x = 75,564.74 × 40,428.62
  4. Step 4: Simplify right side
    54,761.16x = 3,054,978,158.86
  5. Step 5: Solve for x
    x = 3,054,978,158.86/54,761.16
  6. Step 6: Final answer
    x = 55,787.32

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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.