Home / 71,428.06-98,575.68-39,599.92

Finding the Fourth Proportional to 71,428.06, 98,575.68 and 39,599.92

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Solution

The fourth proportional to 71,428.06, 98,575.68 and 39,599.92 is: 54,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.06 : 98,575.68 = 39,599.92 : x
  2. Step 2: Convert to fraction form
    71,428.06/98,575.68 = 39,599.92/x
  3. Step 3: Cross multiply
    71,428.06x = 98,575.68 × 39,599.92
  4. Step 4: Simplify right side
    71,428.06x = 3,903,589,041.95
  5. Step 5: Solve for x
    x = 3,903,589,041.95/71,428.06
  6. Step 6: Final answer
    x = 54,650.64

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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.