Home / 86,128.19-129,193.31-22,948

Finding the Fourth Proportional to 86,128.19, 129,193.31 and 22,948

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Solution

The fourth proportional to 86,128.19, 129,193.31 and 22,948 is: 34,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.19 : 129,193.31 = 22,948 : x
  2. Step 2: Convert to fraction form
    86,128.19/129,193.31 = 22,948/x
  3. Step 3: Cross multiply
    86,128.19x = 129,193.31 × 22,948
  4. Step 4: Simplify right side
    86,128.19x = 2,964,728,077.88
  5. Step 5: Solve for x
    x = 2,964,728,077.88/86,128.19
  6. Step 6: Final answer
    x = 34,422.27

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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.