Home / 68,860.31-103,291.37-39,242.86

Finding the Fourth Proportional to 68,860.31, 103,291.37 and 39,242.86

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Solution

The fourth proportional to 68,860.31, 103,291.37 and 39,242.86 is: 58,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,860.31 : 103,291.37 = 39,242.86 : x
  2. Step 2: Convert to fraction form
    68,860.31/103,291.37 = 39,242.86/x
  3. Step 3: Cross multiply
    68,860.31x = 103,291.37 × 39,242.86
  4. Step 4: Simplify right side
    68,860.31x = 4,053,448,772.12
  5. Step 5: Solve for x
    x = 4,053,448,772.12/68,860.31
  6. Step 6: Final answer
    x = 58,864.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.