Home / 54,874.32-75,726.24-31,008.72

Finding the Fourth Proportional to 54,874.32, 75,726.24 and 31,008.72

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Solution

The fourth proportional to 54,874.32, 75,726.24 and 31,008.72 is: 42,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,874.32 : 75,726.24 = 31,008.72 : x
  2. Step 2: Convert to fraction form
    54,874.32/75,726.24 = 31,008.72/x
  3. Step 3: Cross multiply
    54,874.32x = 75,726.24 × 31,008.72
  4. Step 4: Simplify right side
    54,874.32x = 2,348,173,772.81
  5. Step 5: Solve for x
    x = 2,348,173,772.81/54,874.32
  6. Step 6: Final answer
    x = 42,791.85

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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.