Home / 87,693.10-120,935.75-57,467.44

Finding the Fourth Proportional to 87,693.10, 120,935.75 and 57,467.44

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Solution

The fourth proportional to 87,693.10, 120,935.75 and 57,467.44 is: 79,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.10 : 120,935.75 = 57,467.44 : x
  2. Step 2: Convert to fraction form
    87,693.10/120,935.75 = 57,467.44/x
  3. Step 3: Cross multiply
    87,693.10x = 120,935.75 × 57,467.44
  4. Step 4: Simplify right side
    87,693.10x = 6,949,867,820.81
  5. Step 5: Solve for x
    x = 6,949,867,820.81/87,693.10
  6. Step 6: Final answer
    x = 79,252.16

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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.