Home / 187,875.12-281,785.32-54,719.64

Finding the Fourth Proportional to 187,875.12, 281,785.32 and 54,719.64

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Solution

The fourth proportional to 187,875.12, 281,785.32 and 54,719.64 is: 82,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,875.12 : 281,785.32 = 54,719.64 : x
  2. Step 2: Convert to fraction form
    187,875.12/281,785.32 = 54,719.64/x
  3. Step 3: Cross multiply
    187,875.12x = 281,785.32 × 54,719.64
  4. Step 4: Simplify right side
    187,875.12x = 15,419,191,267.68
  5. Step 5: Solve for x
    x = 15,419,191,267.68/187,875.12
  6. Step 6: Final answer
    x = 82,071.49

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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.