Home / 68,484.20-102,726.30-57,986.60

Finding the Fourth Proportional to 68,484.20, 102,726.30 and 57,986.60

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Solution

The fourth proportional to 68,484.20, 102,726.30 and 57,986.60 is: 86,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,484.20 : 102,726.30 = 57,986.60 : x
  2. Step 2: Convert to fraction form
    68,484.20/102,726.30 = 57,986.60/x
  3. Step 3: Cross multiply
    68,484.20x = 102,726.30 × 57,986.60
  4. Step 4: Simplify right side
    68,484.20x = 5,956,748,867.58
  5. Step 5: Solve for x
    x = 5,956,748,867.58/68,484.20
  6. Step 6: Final answer
    x = 86,979.90

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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.