Home / 86,370.46-129,573.11-36,450.61

Finding the Fourth Proportional to 86,370.46, 129,573.11 and 36,450.61

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Solution

The fourth proportional to 86,370.46, 129,573.11 and 36,450.61 is: 54,683.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.46 : 129,573.11 = 36,450.61 : x
  2. Step 2: Convert to fraction form
    86,370.46/129,573.11 = 36,450.61/x
  3. Step 3: Cross multiply
    86,370.46x = 129,573.11 × 36,450.61
  4. Step 4: Simplify right side
    86,370.46x = 4,723,018,716.84
  5. Step 5: Solve for x
    x = 4,723,018,716.84/86,370.46
  6. Step 6: Final answer
    x = 54,683.26

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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.