Home / 71,418.12-107,033.88-39,826.92

Finding the Fourth Proportional to 71,418.12, 107,033.88 and 39,826.92

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Solution

The fourth proportional to 71,418.12, 107,033.88 and 39,826.92 is: 59,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.12 : 107,033.88 = 39,826.92 : x
  2. Step 2: Convert to fraction form
    71,418.12/107,033.88 = 39,826.92/x
  3. Step 3: Cross multiply
    71,418.12x = 107,033.88 × 39,826.92
  4. Step 4: Simplify right side
    71,418.12x = 4,262,829,776.05
  5. Step 5: Solve for x
    x = 4,262,829,776.05/71,418.12
  6. Step 6: Final answer
    x = 59,688.35

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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.