Home / 54,157.44-74,571.12-47,405.28

Finding the Fourth Proportional to 54,157.44, 74,571.12 and 47,405.28

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Solution

The fourth proportional to 54,157.44, 74,571.12 and 47,405.28 is: 65,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,157.44 : 74,571.12 = 47,405.28 : x
  2. Step 2: Convert to fraction form
    54,157.44/74,571.12 = 47,405.28/x
  3. Step 3: Cross multiply
    54,157.44x = 74,571.12 × 47,405.28
  4. Step 4: Simplify right side
    54,157.44x = 3,535,064,823.51
  5. Step 5: Solve for x
    x = 3,535,064,823.51/54,157.44
  6. Step 6: Final answer
    x = 65,273.85

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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.