Home / 54,931.44-75,804.52-31,057.20

Finding the Fourth Proportional to 54,931.44, 75,804.52 and 31,057.20

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Solution

The fourth proportional to 54,931.44, 75,804.52 and 31,057.20 is: 42,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.44 : 75,804.52 = 31,057.20 : x
  2. Step 2: Convert to fraction form
    54,931.44/75,804.52 = 31,057.20/x
  3. Step 3: Cross multiply
    54,931.44x = 75,804.52 × 31,057.20
  4. Step 4: Simplify right side
    54,931.44x = 2,354,276,138.54
  5. Step 5: Solve for x
    x = 2,354,276,138.54/54,931.44
  6. Step 6: Final answer
    x = 42,858.45

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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.