Home / 68,620.12-94,695.15-38,405.10

Finding the Fourth Proportional to 68,620.12, 94,695.15 and 38,405.10

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Solution

The fourth proportional to 68,620.12, 94,695.15 and 38,405.10 is: 52,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,620.12 : 94,695.15 = 38,405.10 : x
  2. Step 2: Convert to fraction form
    68,620.12/94,695.15 = 38,405.10/x
  3. Step 3: Cross multiply
    68,620.12x = 94,695.15 × 38,405.10
  4. Step 4: Simplify right side
    68,620.12x = 3,636,776,705.27
  5. Step 5: Solve for x
    x = 3,636,776,705.27/68,620.12
  6. Step 6: Final answer
    x = 52,998.69

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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.