Home / 86,470.25-129,709.36-26,494.43

Finding the Fourth Proportional to 86,470.25, 129,709.36 and 26,494.43

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Solution

The fourth proportional to 86,470.25, 129,709.36 and 26,494.43 is: 39,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,470.25 : 129,709.36 = 26,494.43 : x
  2. Step 2: Convert to fraction form
    86,470.25/129,709.36 = 26,494.43/x
  3. Step 3: Cross multiply
    86,470.25x = 129,709.36 × 26,494.43
  4. Step 4: Simplify right side
    86,470.25x = 3,436,575,558.86
  5. Step 5: Solve for x
    x = 3,436,575,558.86/86,470.25
  6. Step 6: Final answer
    x = 39,742.87

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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.