Home / 86,479.35-129,722.91-26,503.43

Finding the Fourth Proportional to 86,479.35, 129,722.91 and 26,503.43

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Solution

The fourth proportional to 86,479.35, 129,722.91 and 26,503.43 is: 39,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,479.35 : 129,722.91 = 26,503.43 : x
  2. Step 2: Convert to fraction form
    86,479.35/129,722.91 = 26,503.43/x
  3. Step 3: Cross multiply
    86,479.35x = 129,722.91 × 26,503.43
  4. Step 4: Simplify right side
    86,479.35x = 3,438,101,932.06
  5. Step 5: Solve for x
    x = 3,438,101,932.06/86,479.35
  6. Step 6: Final answer
    x = 39,756.33

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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.