Home / 68,118.32-102,177.38-21,374.84

Finding the Fourth Proportional to 68,118.32, 102,177.38 and 21,374.84

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Solution

The fourth proportional to 68,118.32, 102,177.38 and 21,374.84 is: 32,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.32 : 102,177.38 = 21,374.84 : x
  2. Step 2: Convert to fraction form
    68,118.32/102,177.38 = 21,374.84/x
  3. Step 3: Cross multiply
    68,118.32x = 102,177.38 × 21,374.84
  4. Step 4: Simplify right side
    68,118.32x = 2,184,025,149.12
  5. Step 5: Solve for x
    x = 2,184,025,149.12/68,118.32
  6. Step 6: Final answer
    x = 32,062.23

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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.