Home / 86,616-129,928.93-24,291.36

Finding the Fourth Proportional to 86,616, 129,928.93 and 24,291.36

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Solution

The fourth proportional to 86,616, 129,928.93 and 24,291.36 is: 36,438.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616 : 129,928.93 = 24,291.36 : x
  2. Step 2: Convert to fraction form
    86,616/129,928.93 = 24,291.36/x
  3. Step 3: Cross multiply
    86,616x = 129,928.93 × 24,291.36
  4. Step 4: Simplify right side
    86,616x = 3,156,150,352.32
  5. Step 5: Solve for x
    x = 3,156,150,352.32/86,616
  6. Step 6: Final answer
    x = 36,438.42

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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.