Home / 187,631.32-281,448.42-54,520.60

Finding the Fourth Proportional to 187,631.32, 281,448.42 and 54,520.60

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Solution

The fourth proportional to 187,631.32, 281,448.42 and 54,520.60 is: 81,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,631.32 : 281,448.42 = 54,520.60 : x
  2. Step 2: Convert to fraction form
    187,631.32/281,448.42 = 54,520.60/x
  3. Step 3: Cross multiply
    187,631.32x = 281,448.42 × 54,520.60
  4. Step 4: Simplify right side
    187,631.32x = 15,344,736,727.45
  5. Step 5: Solve for x
    x = 15,344,736,727.45/187,631.32
  6. Step 6: Final answer
    x = 81,781.32

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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.