Home / 80,950.46-121,416.98-21,792.11

Finding the Fourth Proportional to 80,950.46, 121,416.98 and 21,792.11

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Solution

The fourth proportional to 80,950.46, 121,416.98 and 21,792.11 is: 32,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,950.46 : 121,416.98 = 21,792.11 : x
  2. Step 2: Convert to fraction form
    80,950.46/121,416.98 = 21,792.11/x
  3. Step 3: Cross multiply
    80,950.46x = 121,416.98 × 21,792.11
  4. Step 4: Simplify right side
    80,950.46x = 2,645,931,467.98
  5. Step 5: Solve for x
    x = 2,645,931,467.98/80,950.46
  6. Step 6: Final answer
    x = 32,685.81

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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.