Home / 281,730.24-422,610.78-71,370

Finding the Fourth Proportional to 281,730.24, 422,610.78 and 71,370

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Solution

The fourth proportional to 281,730.24, 422,610.78 and 71,370 is: 107,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,730.24 : 422,610.78 = 71,370 : x
  2. Step 2: Convert to fraction form
    281,730.24/422,610.78 = 71,370/x
  3. Step 3: Cross multiply
    281,730.24x = 422,610.78 × 71,370
  4. Step 4: Simplify right side
    281,730.24x = 30,161,731,368.60
  5. Step 5: Solve for x
    x = 30,161,731,368.60/281,730.24
  6. Step 6: Final answer
    x = 107,058.91

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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.