Home / 71,509.14-98,682.57-39,243.96

Finding the Fourth Proportional to 71,509.14, 98,682.57 and 39,243.96

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Solution

The fourth proportional to 71,509.14, 98,682.57 and 39,243.96 is: 54,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,509.14 : 98,682.57 = 39,243.96 : x
  2. Step 2: Convert to fraction form
    71,509.14/98,682.57 = 39,243.96/x
  3. Step 3: Cross multiply
    71,509.14x = 98,682.57 × 39,243.96
  4. Step 4: Simplify right side
    71,509.14x = 3,872,694,829.78
  5. Step 5: Solve for x
    x = 3,872,694,829.78/71,509.14
  6. Step 6: Final answer
    x = 54,156.64

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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.