Home / 87,629.84-120,929.10-47,885.84

Finding the Fourth Proportional to 87,629.84, 120,929.10 and 47,885.84

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Solution

The fourth proportional to 87,629.84, 120,929.10 and 47,885.84 is: 66,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.84 : 120,929.10 = 47,885.84 : x
  2. Step 2: Convert to fraction form
    87,629.84/120,929.10 = 47,885.84/x
  3. Step 3: Cross multiply
    87,629.84x = 120,929.10 × 47,885.84
  4. Step 4: Simplify right side
    87,629.84x = 5,790,791,533.94
  5. Step 5: Solve for x
    x = 5,790,791,533.94/87,629.84
  6. Step 6: Final answer
    x = 66,082.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.