Home / 86,480.15-129,724.09-26,504.28

Finding the Fourth Proportional to 86,480.15, 129,724.09 and 26,504.28

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Solution

The fourth proportional to 86,480.15, 129,724.09 and 26,504.28 is: 39,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,480.15 : 129,724.09 = 26,504.28 : x
  2. Step 2: Convert to fraction form
    86,480.15/129,724.09 = 26,504.28/x
  3. Step 3: Cross multiply
    86,480.15x = 129,724.09 × 26,504.28
  4. Step 4: Simplify right side
    86,480.15x = 3,438,243,604.11
  5. Step 5: Solve for x
    x = 3,438,243,604.11/86,480.15
  6. Step 6: Final answer
    x = 39,757.60

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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.