Home / 71,082.32-106,623.61-18,491.72

Finding the Fourth Proportional to 71,082.32, 106,623.61 and 18,491.72

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Solution

The fourth proportional to 71,082.32, 106,623.61 and 18,491.72 is: 27,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,082.32 : 106,623.61 = 18,491.72 : x
  2. Step 2: Convert to fraction form
    71,082.32/106,623.61 = 18,491.72/x
  3. Step 3: Cross multiply
    71,082.32x = 106,623.61 × 18,491.72
  4. Step 4: Simplify right side
    71,082.32x = 1,971,653,941.51
  5. Step 5: Solve for x
    x = 1,971,653,941.51/71,082.32
  6. Step 6: Final answer
    x = 27,737.61

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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.