Home / 68,987.92-95,186.46-42,120.64

Finding the Fourth Proportional to 68,987.92, 95,186.46 and 42,120.64

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Solution

The fourth proportional to 68,987.92, 95,186.46 and 42,120.64 is: 58,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,987.92 : 95,186.46 = 42,120.64 : x
  2. Step 2: Convert to fraction form
    68,987.92/95,186.46 = 42,120.64/x
  3. Step 3: Cross multiply
    68,987.92x = 95,186.46 × 42,120.64
  4. Step 4: Simplify right side
    68,987.92x = 4,009,314,614.53
  5. Step 5: Solve for x
    x = 4,009,314,614.53/68,987.92
  6. Step 6: Final answer
    x = 58,116.18

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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.