Home / 86,474.25-129,730.55-26,511.03

Finding the Fourth Proportional to 86,474.25, 129,730.55 and 26,511.03

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Solution

The fourth proportional to 86,474.25, 129,730.55 and 26,511.03 is: 39,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,474.25 : 129,730.55 = 26,511.03 : x
  2. Step 2: Convert to fraction form
    86,474.25/129,730.55 = 26,511.03/x
  3. Step 3: Cross multiply
    86,474.25x = 129,730.55 × 26,511.03
  4. Step 4: Simplify right side
    86,474.25x = 3,439,290,370.41
  5. Step 5: Solve for x
    x = 3,439,290,370.41/86,474.25
  6. Step 6: Final answer
    x = 39,772.42

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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.